title: Medicated intratubal silastic spheres do not prevent pregnancy in rabbits.
mesh_terms: D000818:Animals; D003300:Copper / Q000494:pharmacology; D004343:Drug Implants; D005187:Fallopian Tubes / Q000187:drug effects*; D005260:Female; D005298:Fertility / Q000187:drug effects; D009644:Norgestrel / Q000494:pharmacology*; D010969:Plastics; D011247:Pregnancy; D011817:Rabbits; D012826:Silicone Elastomers; D013089:Spermatocidal Agents / Q000494:pharmacology*; D013267:Stilbenes / Q000494:pharmacology*; D013629:Tamoxifen / Q000494:pharmacology*
chemical_list: D004343:Drug Implants; D010969:Plastics; D012826:Silicone Elastomers; D013089:Spermatocidal Agents; D013267:Stilbenes; D013629:Tamoxifen; D009644:Norgestrel; D003300:Copper