[Infant mortality in Czechoslovakia following alteration of the definition of live-born infant. Some biological and social factors influencing infant mortality].
D003604:Czechoslovakia; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D011247:Pregnancy
Kojenecká úmrtnost v CSSR po zmĕnĕ definice zivĕ narozeného dítĕte. Nĕkteré biologické a sociální faktory ovlivnující kojeneckou úmrtnost.