- Comparison of the performance of screening mammography, physical examination, and breast US and evaluation of factors that influence them: an analysis of 27,825 patient evaluationsThomas M Kolb
Department of Radiology, Columbia Presbyterian Medical Center, New York, NY, USA
Radiology 225:165-75. 2002....
- Sequential acquisition of toilet-training skills: a descriptive study of gender and age differences in normal childrenTimothy R Schum
Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
Pediatrics 109:E48. 2002..To compare the ages, by gender, at which normally developing children acquire individual toilet-training skills and to describe the typical sequence by which children achieve complete toileting success...