na INLIS000000000002858 20231116011312 0010-061600000002857 231116 0 eng 0-7216-5137-2 614.4 Gor e Gordis, Leon Epidemiology / Leon Gordis USA : W.B Saunders Company, 1996. Epidemiology 614.4 Gor e 277 p, ; 26 cm. 110443