Relation of fertility to occupational status, IQ, educational attainment and size of family of origin: a follow-up study of a male Kalamazoo public school population.
D004493:Education; D005191:Family Characteristics; D005298:Fertility; D006801:Humans; D007360:Intelligence; D008297:Male; D008824:Michigan; D008875:Middle Aged; D009790:Occupations