FLETCHER R.H.,FLETCHER S.W. . CLINICAL EPIDEMIOLOGY : THE ESSENTIALS / Textual Documents NULL. - NULL : B.I. PUB. , 2005. - 252 : : XV ; ; A4 . + PB. PSM ISBN: 07817757X 895.00 Subjects--Index Terms: PREVENTIVE SOCIAL MEDICINE(EPIDEMIOLOGY) Dewey Class. No.: 614.4 / FLE/FLE