title: [Modes of male contraception: vasectomy and non-hormonal drug sterilization].
mesh_terms: D003272:Contraceptive Agents, Male / Q000009:adverse effects / Q000494:pharmacology*; D004542:Ejaculation / Q000187:drug effects; D006145:Guanethidine / Q000009:adverse effects / Q000494:pharmacology; D006801:Humans; D008297:Male; D008750:Methyldopa / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D014659:Vasectomy
chemical_list: D003272:Contraceptive Agents, Male; D008750:Methyldopa; D006145:Guanethidine
vernacular_title: Medidas de contracepción masculina: la vasectomía y la esterilización farmacológica no hormonal.