[Medico-social protection of mother and child in the socialist countries].
D002031:Bulgaria; D002662:Child Health Services; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008427:Maternal Health Services; D011247:Pregnancy; D011295:Prenatal Care; D012950:Socialism; D013222:State Medicine
Mediko-sotsialna zashtita na maĭchinstvoto i detstvoto v sotsialisticheskite strani.