| Y Kohlhammer [Risk factors for community acquired pneumonia (CAP). A systematic review]Y Kohlhammer Institut für Sozialmedizin, Universitatsklinikum Schleswig Holstein, Campus Lubeck Dtsch Med Wochenschr 130:381-6. 2005 Swimming pool attendance and hay fever rates later in lifeY Kohlhammer GSF, National Research Center for Environment and Health, Institute of Epidemiology, Neuherberg, Germany Allergy 61:1305-9. 2006 Influence of physical inactivity on the prevalence of hay feverY Kohlhammer GSF - National Research Center for Environment and Health, Institute of Epidemiology, Neuherberg, Germany Allergy 61:1310-5. 2006 Determinants of influenza and pneumococcal vaccination in elderly people: a systematic reviewY Kohlhammer Institute of Social Medicine, Medical University Schleswig Holstein, Campus Lubeck, Beckergrube 43 47, D 23552 Lübeck, Germany Public Health 121:742-51. 2007
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