TY - BOOK AU - Merrill,Ray M. TI - Introduction to epidemiology SN - 9781449645175 U1 - 614.4 MER PY - 2013/// CY - Burlington, Mass. PB - Jones & Bartlett Learning KW - Epidemiology KW - Epidemiologic Methods KW - fast N1 - Includes bibliographical references and index ER -