title: Natural and artificial bleomycins: chemistry and antitumor activities.
mesh_terms: D000903:Antibiotics, Antineoplastic; D001761:Bleomycin / Q000138:chemical synthesis / Q000627:therapeutic use; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy; D055598:Chemical Phenomena; D002621:Chemistry; D009374:Neoplasms, Experimental / Q000188:drug therapy
chemical_list: D000903:Antibiotics, Antineoplastic; D001761:Bleomycin