TY - BOOK AU - Barker,D.J.P. AU - Bennett,F.J. TI - Practical epidemiology SN - 9780443044243 AV - RA652.4 .B37 1976 U1 - 614.614.422724 22 PY - 1976/// CY - Edinburgh, New York, New York PB - Churchill Livingstone, distributed in the U.S.A. by Longman KW - Epidemiology KW - Technique N1 - Includes index; Bibliography: p. [175] ER -