title: Vasectomy in Guatemala: a follow-up study of five hundred acceptors.
mesh_terms: D000328:Adult; D005500:Follow-Up Studies; D006166:Guatemala; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D009042:Motivation; D012725:Sexual Behavior; D014659:Vasectomy / Q000009:adverse effects / Q000523:psychology*