title: Effect of crystalline penicillin and bicillin-1 on experimental syphilis in the rabbit. Electron microscope study.
mesh_terms: D000818:Animals; D003593:Cytoplasm; D007273:Injections, Intramuscular; D008264:Macrophages; D008854:Microscopy, Electron; D010401:Penicillin G Benzathine / Q000008:administration & dosage / Q000627:therapeutic use*; D010406:Penicillins / Q000008:administration & dosage / Q000627:therapeutic use*; D010586:Phagocytes; D011817:Rabbits; D012270:Ribosomes; D013587:Syphilis / Q000188:drug therapy* / Q000473:pathology; D014209:Treponema Immobilization Test; D014210:Treponema pallidum
chemical_list: D010406:Penicillins; D010401:Penicillin G Benzathine