[20 YEARS OF CHILD HEALTH PROTECTION IN POLAND].
D000293:Adolescent; D002648:Child; D002669:Child Welfare; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008429:Maternal Welfare; D010372:Pediatrics; D011044:Poland; D011247:Pregnancy
ADOLESCENCE; CHILD; CHILD WELFARE; INFANT; INFANT, NEWBORN; MATERNAL WELFARE; PEDIATRICS; POLAND; PREGNANCY
DWUDZIESTOLECIE OCHRONY ZDROWIA DZIECKA W POLSCE.