title: Celibacy, late marriage and potential mates in a Swiss isolate.
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D011155:Population Control; D011247:Pregnancy; D012746:Sexual Abstinence; D012725:Sexual Behavior; D013557:Switzerland