TY - BOOK AU - Barker, D. J. P. TI - Practical Epidemiology SN - 0-443-01003-X U1 - 616 PY - 1973/// CY - Edinburgh PB - Churchil Livingston KW - Diseases KW - Pathology -- Internal medicine N1 - 3893 / 16.08.1973; Epidemiology; Public Health; Research Methods ER -