Needs in vital and health statistics in underdeveloped countries.
D019352:Censuses; D002648:Child; D003625:Data Collection; D003906:Developing Countries; D006301:Health Services Needs and Demand; D006801:Humans; D015994:Incidence; D007223:Infant; D007226:Infant Mortality; D012106:Research; D014798:Vital Statistics
VITAL STATISTICS