title: Pills, shots, implants, vaccines: can the elusive sperm be reined in? Male contraceptive research extremely slow, but promising.
mesh_terms: D003267:Contraception; D003270:Contraceptive Agents; D003272:Contraceptive Agents, Male; D004467:Economics; D005193:Family Planning Services; D009934:Organization and Administration; D012106:Research; D013672:Technology
chemical_list: D003270:Contraceptive Agents; D003272:Contraceptive Agents, Male
keywords: Contraception; Contraceptive Agents; Contraceptive Agents, Male; Economic Factors; Family Planning; Male Contraception; Obstacles; Organization And Administration; Research And Development; Technology