Mats Fredrikson

Summary

Affiliation: Uppsala University
Country: Sweden

Publications

  1. ncbi Amygdaloid regional cerebral blood flow and subjective fear during symptom provocation in anxiety disorders
    Mats Fredrikson
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Ann N Y Acad Sci 985:341-7. 2003
  2. doi A link between serotonin-related gene polymorphisms, amygdala activity, and placebo-induced relief from social anxiety
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    J Neurosci 28:13066-74. 2008
  3. doi Disentangling the web of fear: amygdala reactivity and functional connectivity in spider and snake phobia
    Fredrik Ahs
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Psychiatry Res 172:103-8. 2009
  4. doi Age, sex and NK1 receptors in the human brain -- a positron emission tomography study with [¹¹C]GR205171
    Jonas Engman
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Eur Neuropsychopharmacol 22:562-8. 2012
  5. pmc Amygdala subregions tied to SSRI and placebo response in patients with social anxiety disorder
    Vanda Faria
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Neuropsychopharmacology 37:2222-32. 2012
  6. ncbi Symptom provocation in specific phobia affects the substance P neurokinin-1 receptor system
    Asa Michelgård
    Department of Neuroscience, Uppsala University, Uppsala, Sweden
    Biol Psychiatry 61:1002-6. 2007
  7. doi Arousal modulation of memory and amygdala-parahippocampal connectivity: a PET-psychophysiology study in specific phobia
    Fredrik Ahs
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Psychophysiology 48:1463-9. 2011
  8. pmc Genotype over-diagnosis in amygdala responsiveness: affective processing in social anxiety disorder
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    J Psychiatry Neurosci 34:30-40. 2009
  9. doi Increased neurokinin-1 receptor availability in temporal lobe epilepsy: a positron emission tomography study using [(11)C]GR205171
    Torsten Danfors
    Department of Neuroscience, Neurology, Uppsala University, Uppsala, Sweden
    Epilepsy Res 97:183-9. 2011
  10. doi Ventromedial prefrontal neurokinin 1 receptor availability is reduced in chronic pain
    Clas Linnman
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Pain 149:64-70. 2010

Detail Information

Publications57

  1. ncbi Amygdaloid regional cerebral blood flow and subjective fear during symptom provocation in anxiety disorders
    Mats Fredrikson
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Ann N Y Acad Sci 985:341-7. 2003
    ....
  2. doi A link between serotonin-related gene polymorphisms, amygdala activity, and placebo-induced relief from social anxiety
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    J Neurosci 28:13066-74. 2008
    ..Hence, our study shows, for the first time, evidence of a link between genetically controlled serotonergic modulation of amygdala activity and placebo-induced anxiety relief...
  3. doi Disentangling the web of fear: amygdala reactivity and functional connectivity in spider and snake phobia
    Fredrik Ahs
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Psychiatry Res 172:103-8. 2009
    ....
  4. doi Age, sex and NK1 receptors in the human brain -- a positron emission tomography study with [¹¹C]GR205171
    Jonas Engman
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Eur Neuropsychopharmacol 22:562-8. 2012
    ..The observed pattern of NK1 receptor distribution in the brain might have functional significance for brain-related disorders showing age- and sex-related differences in prevalence...
  5. pmc Amygdala subregions tied to SSRI and placebo response in patients with social anxiety disorder
    Vanda Faria
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Neuropsychopharmacology 37:2222-32. 2012
    ....
  6. ncbi Symptom provocation in specific phobia affects the substance P neurokinin-1 receptor system
    Asa Michelgård
    Department of Neuroscience, Uppsala University, Uppsala, Sweden
    Biol Psychiatry 61:1002-6. 2007
    ..This positron emission tomography (PET) study evaluated how the activity in the SP-NK1 receptor system in the amygdala was affected by fear provocation in subjects with specific phobia...
  7. doi Arousal modulation of memory and amygdala-parahippocampal connectivity: a PET-psychophysiology study in specific phobia
    Fredrik Ahs
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Psychophysiology 48:1463-9. 2011
    ..Electrodermal activity further mediated the amygdala effect on parahippocampal activity. Memory encoding during phobic fear therefore seems contingent on amygdala's influence on arousal and parahippocampal activity...
  8. pmc Genotype over-diagnosis in amygdala responsiveness: affective processing in social anxiety disorder
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    J Psychiatry Neurosci 34:30-40. 2009
    ..We investigated the influence of these polymorphisms on amygdala responsiveness to angry faces in patients with social anxiety disorder (SAD) compared with healthy controls...
  9. doi Increased neurokinin-1 receptor availability in temporal lobe epilepsy: a positron emission tomography study using [(11)C]GR205171
    Torsten Danfors
    Department of Neuroscience, Neurology, Uppsala University, Uppsala, Sweden
    Epilepsy Res 97:183-9. 2011
    ..A secondary objective was to investigate the relationship between seizure frequency and NK1 receptor availability...
  10. doi Ventromedial prefrontal neurokinin 1 receptor availability is reduced in chronic pain
    Clas Linnman
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Pain 149:64-70. 2010
    ..We conclude that the central NK1 receptor system is altered in human chronic pain. The results suggest that NK1 receptors in the vmPFC modulate motor inhibition, and contribute to fear and avoidance of movement...
  11. doi Serotonin Synthesis and Reuptake in Social Anxiety Disorder: A Positron Emission Tomography Study
    Andreas Frick
    Department of Psychology, Uppsala University, Uppsala, Sweden
    JAMA Psychiatry 72:794-802. 2015
    ..Serotonin 1A autoreceptors, which inhibit serotonin synthesis and release, are downregulated in SAD, and serotonin transporter availability might be increased; however, presynaptic serotonin activity has not been evaluated extensively...
  12. doi Amygdala-frontal couplings characterizing SSRI and placebo response in social anxiety disorder
    Vanda Faria
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Int J Neuropsychopharmacol 17:1149-57. 2014
    ....
  13. pmc Classifying social anxiety disorder using multivoxel pattern analyses of brain function and structure
    Andreas Frick
    Department of Psychology, Uppsala University, Uppsala, Sweden Electronic address
    Behav Brain Res 259:330-5. 2014
    ..SVM may thus be useful for identifying imaging biomarkers of SAD. ..
  14. ncbi Hypothalamic blood flow correlates positively with stress-induced cortisol levels in subjects with social anxiety disorder
    Fredrik Ahs
    Department of Psychology, Uppsala University, Box 1225, SE 751 42 Uppsala, Sweden
    Psychosom Med 68:859-62. 2006
    ..Another objective was to evaluate whether salivary cortisol levels correlated with rCBF in other brain areas...
  15. doi Arousal enhanced memory retention is eliminated following temporal lobe resection
    Fredrik Ahs
    Department of Psychology, Uppsala University, Sweden
    Brain Cogn 73:176-9. 2010
    ..However, patients and controls did not differ in memory performance for non-arousing pictures. These results suggest that the MTL is necessary for arousal induced memory enhancement...
  16. pmc Elevated [11C]-D-deprenyl uptake in chronic Whiplash Associated Disorder suggests persistent musculoskeletal inflammation
    Clas Linnman
    Department of Psychology, Uppsala University, Uppsala, Sweden
    PLoS ONE 6:e19182. 2011
    ..The present investigation demonstrates that painful processes in the periphery can be objectively visualized and quantified with PET and that (11)C-D-deprenyl is a promising tracer for these purposes...
  17. pmc Neuroticism-related personality traits are related to symptom severity in patients with premenstrual dysphoric disorder and to the serotonin transporter gene-linked polymorphism 5-HTTPLPR
    Malin Gingnell
    Department of Women s and Children s Health, Uppsala University, 751 85, Uppsala, Sweden
    Arch Womens Ment Health 13:417-23. 2010
    ..Within the group of PMDD patients, differences in certain personality trait scores are associated with the short allele of the 5-HTTLPR polymorphism...
  18. doi The effects of medial temporal lobe resections on verbal threat and fear conditioning
    Fredrik Ahs
    Department of Psychology, Uppsala University, 751 42 Uppsala, Sweden
    Biol Psychol 83:41-6. 2010
    ..Trace conditioning was not observed in any group. Results suggest a bilateral MTL hemispheric involvement in the processing of verbal threat, whereas one intact hemisphere seems sufficient for delay conditioning...
  19. doi Reduced serotonin synthesis and regional cerebral blood flow after anxiolytic treatment of social anxiety disorder
    Andreas Frick
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Eur Neuropsychopharmacol . 2016
    ..These results are consistent with the notion that serotonin in the amygdala exerts an anxiogenic influence and, conversely, that anxiolysis is achieved through decreased serotonin formation in the amygdala...
  20. doi Enlargement of visual processing regions in social anxiety disorder is related to symptom severity
    Andreas Frick
    Department of Psychology, Uppsala University, Uppsala, Sweden Electronic address
    Neurosci Lett 583:114-9. 2014
    ....
  21. doi Premenstrual dysphoric disorder and prefrontal reactivity during anticipation of emotional stimuli
    Malin Gingnell
    Department of Women s and Children s Health, Uppsala University, Uppsala, Sweden Department of Psychology, Uppsala University, Uppsala, Sweden Electronic address
    Eur Neuropsychopharmacol 23:1474-83. 2013
    ....
  22. doi High-frequency heart rate variability and cortico-striatal activity in men and women with social phobia
    Fredrik Ahs
    Department of Psychology, Uppsala University, Box 1225, SE 751 42 Uppsala, Sweden
    Neuroimage 47:815-20. 2009
    ..Moreover, caudate functions, possibly related to dopaminergic neurotransmission, have sexually dimorphic effects on vagal modulation of the heart...
  23. doi Chronic whiplash symptoms are related to altered regional cerebral blood flow in the resting state
    Clas Linnman
    Department of Psychology, Uppsala University, Box 1225, SE 751 42 Uppsala, Sweden
    Eur J Pain 13:65-70. 2009
    ..We thus suggest an involvement of the posterior cingulate, parahippocampal and medial prefrontal gyri in WAD and speculate that alterations in the resting state are linked to an increased self-relevant evaluation of pain and stress...
  24. ncbi Cerebral blood flow changes after treatment of social phobia with the neurokinin-1 antagonist GR205171, citalopram, or placebo
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Biol Psychiatry 58:132-42. 2005
    ..This study compared the effects of an NK1 receptor antagonist, citalopram, and placebo on brain activity and anxiety symptoms in social phobia...
  25. ncbi Serotonin transporter polymorphism related to amygdala excitability and symptom severity in patients with social phobia
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Neurosci Lett 362:189-92. 2004
    ..Thus, 5-HTT genetic variation was associated with symptom severity and amygdala excitability in social phobia...
  26. ncbi Amygdala and anterior cingulate cortex activation during affective startle modulation: a PET study of fear
    Anna Pissiota
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Eur J Neurosci 18:1325-31. 2003
    ..Thus, we suggest that the amygdaloid area and the ACC form part of a neural system dedicated to attention and orientation to danger, and that this network modulates startle during negative affect...
  27. ncbi Neurofunctional correlates of posttraumatic stress disorder: a PET symptom provocation study
    Anna Pissiota
    Uppsala University, Department of Psychology, Box 1225, 75142 Uppsala, Sweden
    Eur Arch Psychiatry Clin Neurosci 252:68-75. 2002
    ....
  28. doi Disrupting Reconsolidation Attenuates Long-Term Fear Memory in the Human Amygdala and Facilitates Approach Behavior
    Johannes Björkstrand
    Department of Psychology, Uppsala University, Uppsala 752 37, Sweden Electronic address
    Curr Biol 26:2690-2695. 2016
    ....
  29. doi Serotonin synthesis rate and the tryptophan hydroxylase-2: G-703T polymorphism in social anxiety disorder
    Tomas Furmark
    Department of Psychology, Uppsala University, Uppsala, Sweden
    J Psychopharmacol 30:1028-35. 2016
    ..Our results support that social anxiety disorder entails an overactive presynaptic serotonergic system that, in turn, seems functionally influenced by the TPH2 G-703T polymorphism in emotionally relevant brain regions. ..
  30. doi Combining escitalopram and cognitive-behavioural therapy for social anxiety disorder: randomised controlled fMRI trial
    Malin Gingnell
    Malin Gingnell, MD, PhD, Andreas Frick, PhD, Jonas Engman, MSc, Iman Alaie, MSc, Johannes Björkstrand, MSc, Department of Psychology, Uppsala University, Uppsala, Sweden Vanda Faria, PhD, Department of Psychology, Uppsala University, Uppsala, Sweden, and Center for Pain and the Brain, Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children s Hospital, Harvard Medical School, Boston, Massachusetts, USA Per Carlbring, PhD, Department of Psychology, Stockholm University, Stockholm, Sweden Gerhard Andersson, PhD, Department of Behavioural Sciences and Learning, Psychology, Linkoping University, Linkoping, and Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden Margareta Reis, PhD, Division of Drug Research Clinical Pharmacology
    Br J Psychiatry 209:229-35. 2016
    ..Selective serotonin reuptake inhibitors (SSRIs) and cognitive-behavioural therapy (CBT) are often used concomitantly to treat social anxiety disorder (SAD), but few studies have examined the effect of this combination...
  31. pmc Disruption of Memory Reconsolidation Erases a Fear Memory Trace in the Human Amygdala: An 18-Month Follow-Up
    Johannes Björkstrand
    Department of Psychology, Uppsala University, Uppsala, Sweden
    PLoS ONE 10:e0129393. 2015
    ..We conclude that disrupting reconsolidation have long lasting behavioral effects and may permanently erase the fear component of an amygdala-dependent memory...
  32. ncbi Disruption of reconsolidation erases a fear memory trace in the human amygdala
    Thomas Agren
    Department of Psychology, Uppsala University, SE 751 42 Uppsala, Sweden
    Science 337:1550-2. 2012
    ..Thus, as previously demonstrated in rodents, fear memory suppression resulting from behavioral disruption of reconsolidation is amygdala-dependent also in humans, which supports an evolutionarily conserved memory-update mechanism...
  33. doi Neurofunctional correlates of expressed vocal affect in social phobia
    Petri Laukka
    Department of Psychology, Stockholm University, Sweden
    Cogn Affect Behav Neurosci 11:413-25. 2011
    ..We suggest that brain areas important for emotion regulation may also form part of a network associated with the modulation of affective prosody in social phobia...
  34. doi Medial temporal lobe resection attenuates superior temporal sulcus response to faces
    Fredrik Ahs
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Neuropsychologia 61:291-8. 2014
    ..The reduction in face-related STS activity after both right and left ATR suggests that MTL modulation of the STS may facilitate recognition of facial expression...
  35. doi Oral contraceptive use changes brain activity and mood in women with previous negative affect on the pill--a double-blinded, placebo-controlled randomized trial of a levonorgestrel-containing combined oral contraceptive
    Malin Gingnell
    Department of Women s and Children s Health, Uppsala University, Uppsala, Sweden
    Psychoneuroendocrinology 38:1133-44. 2013
    ..A second aim was to determine if COC use is associated with changes in brain reactivity in regions previously associated with emotion processing...
  36. pmc Social stimulation and corticolimbic reactivity in premenstrual dysphoric disorder: a preliminary study
    Malin Gingnell
    Department of Women s and Children s Health, Uppsala University, Uppsala, Sweden
    Biol Mood Anxiety Disord 4:3. 2014
    ..Fourteen women with PMDD and 13 healthy controls participated...
  37. pmc Learned cardiac control with heart rate biofeedback transfers to emotional reactions
    Nathalie Peira
    Department of Psychology, Uppsala University, Uppsala, Sweden
    PLoS ONE 8:e70004. 2013
    ..Thus, heart rate biofeedback training may enable regulation of bodily aspects of emotion also when feedback is not available. ..
  38. ncbi Sensed presence and mystical experiences are predicted by suggestibility, not by the application of transcranial weak complex magnetic fields
    Pehr Granqvist
    Department of Psychology, Uppsala University, Sweden
    Neurosci Lett 379:1-6. 2005
    ..Because the personality characteristics significantly predicted outcomes, suggestibility may account for previously reported effects. Our results strongly question the earlier claims of experiential effects of weak magnetic fields...
  39. doi Human serotonin transporter availability predicts fear conditioning
    Fredrik Ahs
    Department of Psychology, Uppsala University, Uppsala, Sweden Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden Electronic address
    Int J Psychophysiol 98:515-9. 2015
    ..Our finding supports serotonergic modulation of fear conditioning in humans and may aid in understanding susceptibility for developing anxiety conditions such as post-traumatic stress disorder. ..
  40. ncbi The human startle reflex and pons activation: a regional cerebral blood flow study
    Anna Pissiota
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Eur J Neurosci 15:395-8. 2002
    ..Thus we conclude that the neurofunctional correlates of the startle circuit and its habituation in humans are similar to that previously described in animals...
  41. doi Disruption of human fear reconsolidation using imaginal and in vivo extinction
    Thomas Agren
    Department of Psychology, Uppsala University, Uppsala, Sweden Electronic address
    Behav Brain Res 319:9-15. 2016
    ..Thus, disrupted reconsolidation of fear conditioning can be achieved without in vivo stimulus presentation, through purely cognitive means, suggesting possible therapeutic applications...
  42. doi Controlling the emotional heart: heart rate biofeedback improves cardiac control during emotional reactions
    Nathalie Peira
    Department of Psychology, Uppsala University, Sweden Department of Experimental Clinical and Health Psychology, Ghent University, Belgium Electronic address
    Int J Psychophysiol 91:225-31. 2014
    ..Our findings show that accurate online heart rate biofeedback provides an efficient way to down-regulate autonomic physiological reactions when encountering negative stimuli. ..
  43. ncbi Common changes in cerebral blood flow in patients with social phobia treated with citalopram or cognitive-behavioral therapy
    Tomas Furmark
    Department of Psychology, Uppsala University, Box 1225, SE 751 42 Uppsala, Sweden
    Arch Gen Psychiatry 59:425-33. 2002
    ..Neurofunctional changes underlying effective antianxiety treatments are incompletely characterized. This study explored the effects of citalopram and cognitive-behavioral therapy on regional cerebral blood flow (rCBF) in social phobia...
  44. doi Neuroimaging in anxiety disorders
    Mats Fredrikson
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Mod Trends Pharmacopsychiatri 29:47-66. 2013
    ....
  45. doi Imaging the placebo response: a neurofunctional review
    Vanda Faria
    Department of Psychology, Uppsala University, Uppsala, Sweden
    Eur Neuropsychopharmacol 18:473-85. 2008
    ..Placebo-induced clinical benefits also involve disorder-specific neuronal responses, yielding neurofunctional or neurochemical alterations similar to those produced by pharmacological treatments...
  46. ncbi Retrospenial cortical deactivation during painful stimulation of fibromyalgic patients
    Gustav Wik
    Department of Clinical Neuroscience, Karolinska Institute and Hospital, Stockholm, Sweden
    Int J Neurosci 116:1-8. 2006
    ....
  47. ncbi Cerebral blood flow during anticipation of public speaking in social phobia: a PET study
    Maria Tillfors
    Department of Social Sciences, Orebro University, Orebro, Sweden
    Biol Psychiatry 52:1113-9. 2002
    ..To evaluate anticipatory anxiety we compared individuals speaking alone before they were speaking in front of an audience with those who did the reverse...
  48. ncbi Retrosplenial cortical activation in the fibromyalgia syndrome
    Gustav Wik
    Department of Psychiatry, University of Bergen, Sandviken Hospital, N 5035, Bergen, Norway
    Neuroreport 14:619-21. 2003
    ..The brain regions with lower rCBF in fibromyalgic patients than controls participate in the normal cognitive processing of pain, which may be dysfunctional in fibromyalgia...
  49. ncbi Right-sided human prefrontal brain activation during acquisition of conditioned fear
    Hakan Fischer
    Aging Research Center, Karolinska Institute, Stockholm University, Sweden
    Emotion 2:233-41. 2002
    ..During acquisition, rCBF increased in the right medial frontal gyrus, supporting a role for the prefrontal cortex in fear conditioning to unmasked evolutionary fear-relevant stimuli...
  50. pmc The genetic covariation between fear conditioning and self-report fears
    John M Hettema
    Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia 23298 0126, USA
    Biol Psychiatry 63:587-93. 2008
    ..Although prior studies have demonstrated that fear conditioning and self-report fears are heritable, no studies have determined whether they share a common genetic basis...
  51. ncbi Social phobia and avoidant personality disorder: one spectrum disorder?
    Maria Tillfors
    Department of Social Sciences, Orebro University, Sweden
    Nord J Psychiatry 58:147-52. 2004
    ....
  52. ncbi Association between ulcerative growth and hypoxia inducible factor-1alpha polymorphisms in colorectal cancer patients
    Karin Fransen
    Division of Cell Biology Floor 9, Department of Biomedicine and Surgery, Faculty of Health Sciences, Linkoping, Sweden
    Mol Carcinog 45:833-40. 2006
    ..Future screening of the polymorphic HIF-1alpha allele may therefore be of importance in the selection of treatment strategies of CRC...
  53. ncbi Consequences of suppressing thoughts about tinnitus and the effects of cognitive distraction on brain activity in tinnitus patients
    Gerhard Andersson
    Department of Behavioural Sciences, Linkoping University, Linkoping, Sweden
    Audiol Neurootol 11:301-9. 2006
    ..Thus, distraction that altered the tinnitus experience seemed to attenuate auditory cortex activity...
  54. ncbi Psychological stress tasks in the prediction of blood pressure level and need for antihypertensive medication: 9-12 years of follow-up
    Martti T Tuomisto
    Department of Psychology, University of Tampere, Tampere, Finland
    Health Psychol 24:77-87. 2005
    ..Diastolic blood pressure (DBP) was very useful when added to casual DBP in predicting the need for antihypertensive medication. Reactivity to active tasks especially predicts the need for antihypertensive medication...
  55. ncbi Kinetic compartment modeling of [11C]-5-hydroxy-L-tryptophan for positron emission tomography assessment of serotonin synthesis in human brain
    Gisela E Hagberg
    Uppsala University PET Center, Institute of Psychiatry, Sweden
    J Cereb Blood Flow Metab 22:1352-66. 2002
    ..These findings suggest the use of [11C]-HTP PET measurements to investigate serotonin synthesis...
  56. ncbi A twin study of the genetics of fear conditioning
    John M Hettema
    Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Medical College of Virginia Campus of Virginia Commonwealth University, Richmond, 23298, USA
    Arch Gen Psychiatry 60:702-8. 2003
    ..The objective of this study was to determine the genetic and environmental sources of individual differences in fear conditioning by means of a twin sample...
  57. ncbi Immobility--a major risk factor for development of pressure ulcers among adult hospitalized patients: a prospective study
    Margareta Lindgren
    Department of Medicine and Care, Division of Nursing Science, Faculty of Health Sciences, Linkoping University, Linkoping, Sweden
    Scand J Caring Sci 18:57-64. 2004
    ..To identify risk factors associated with pressure ulcer development among adult hospitalized medical and surgical patients...