TY - BOOK AU - Wild, Dorothea M.G. AU - Elmore, Joann G. TI - Epidemiology, biostatistics, and preventive medicine SN - 141603496X (pbk. ) PY - 2007/// CY - Philadelphia PB - Saunders/Elsevier KW - Epidemiology KW - Medical statistics KW - Medicine, Preventive N1 - Includes index; Includes bibliographical references ER -