Family planning and maternal and child health.
D000028:Abortion, Induced; D002669:Child Welfare; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007723:Korea; D008297:Male; D008423:Maternal Age; D008428:Maternal Mortality; D008429:Maternal Welfare; D011247:Pregnancy