TY - CHAP M1 - Book, Section TI - A1 - Greenberg, Raymond S. A1 - Daniels, Stephen R. A1 - Flanders, W. Dana A1 - Eley, John William A1 - Boring, John R. Y1 - 2005 N1 - T2 - Medical Epidemiology, 4e AB - SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1000027791 ER -