[Problems of infant mortality].
D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D008171:Lung Diseases; D014798:Vital Statistics
INFANT; INFANT, NEWBORN/diseases; LUNGS/diseases; VITAL STATISTICS
Problemer omkring spebarnsdødeligheten.