TY - BOOK AU - Beaglehole, R. AU - Bonita, R. AU - Kjellstrlm, T. AU - World Health Organization TI - Basic epidemiology SN - 92-4-154446-5. U1 - 614.4 PY - 1993/// CY - Geneva PB - World Health Organization KW - Public Health KW - Epidemiology ER -