TY - BOOK AU - Gordis,Leon TI - Epidemiology SN - 9781416025306 PY - 2004/// CY - Philadelphia PB - Elsevier Saunders KW - Epidemiology KW - Epidemiology Methods N1 - This book includes online access at http://www.studentconsult.com, please refer to the library staff for the password UR - http://www.studentconsult.com ER -