Gender preferences, sex predetermination, and family size in the United States.
D002648:Child; D005191:Family Characteristics; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D008393:Marriage; D011247:Pregnancy; D012732:Sex Determination Analysis; D012737:Sex Factors; D012744:Sex Ratio; D014481:United States