[PERINATAL MORTALITY AND PROBLEMS OF THE ANTENATAL PROTECTION OF THE FETUS].
D005260:Female; D005333:Fetus; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D066087:Perinatal Death; D054238:Perinatal Mortality; D011247:Pregnancy; D011295:Prenatal Care; D014586:USSR
INFANT MORTALITY; INFANT, NEWBORN; PREGNANCY; PRENATAL CARE; USSR