title: The problem of multiple causation in population analysis, with particular reference to the poplygamy-fertility hypothesis.
mesh_terms: D000328:Adult; D000349:Africa; D001723:Birth Rate; D003469:Culture; D005191:Family Characteristics; D005260:Female; D005298:Fertility; D006801:Humans; D008393:Marriage; D011247:Pregnancy; D012725:Sexual Behavior; D013609:Taboo