[Biometric study of infant mortality in a hospital district in the years 1951-1975].
D000367:Age Factors; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D012383:Romania
Studiul biometric al mortalitătii infantile pe teritoriul unui spital, ĭn anii 1951-1975.