TY - BOOK AU - Barker,D.J.P. AU - Cooper,Cyrus AU - Rose,G.A. TI - Epidemiology in medical practice SN - 044305620X U1 - 614.4 21 PY - 1998/// CY - New York PB - Churchill Livingstone KW - Epidemiology KW - Medicine, Preventive N1 - Includes bibliographical references and index ER -