Breastfeeding: patterns, correlates, and fertility effects.
D000293:Adolescent; D000328:Adult; D001208:Asia; D001721:Birth Intervals; D001942:Breast Feeding; D003267:Contraception; D003431:Cross-Cultural Comparison; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D010176:Panama; D010298:Parity; D011247:Pregnancy; D012044:Regression Analysis; D012723:Sex; D012959:Socioeconomic Factors; D013020:South America; D013997:Time Factors