614.4 Hennekens, Charles H. Epidemiology in medicine / Charles H. Hennekens, Julie E. Buring. - 1st ed. - Boston : Little, Brown, c1987. - xv, 383 p. : ill. ; 24 cm. - Includes bibliographies and index. ISBN: 0316356360 Түлхүүр үг: Epidemiologic Methods., Biometry., Epidemiology.,