Epidemiologic surveillance in developing countries.
Frerichs
R R
RR
Department of Epidemiology, University of California, Los Angeles 90024-1772.
D003906:Developing Countries; D004812:Epidemiologic Methods; D004813:Epidemiology; D006801:Humans; D007256:Information Systems; D008838:Microcomputers; D011159:Population Surveillance; D012494:Sampling Studies; D000078329:Workforce