title: Naturally-occurring antitumor agents.
mesh_terms: D000577:Amides; D000588:Amines; D000818:Animals; D000970:Antineoplastic Agents; D006224:Cricetinae; D004988:Ethers, Cyclic; D005354:Fibrosarcoma / Q000139:chemically induced; D006027:Glycosides; D006571:Heterocyclic Compounds; D006801:Humans; D007094:Imides; D007783:Lactones; D051379:Mice; D009368:Neoplasm Transplantation; D009574:Nitro Compounds; D009603:Nitroso Compounds; D010940:Plant Proteins; D010946:Plants, Medicinal; D011809:Quinones; D011817:Rabbits; D051381:Rats; D013729:Terpenes; D014183:Transplantation, Heterologous
chemical_list: D000577:Amides; D000588:Amines; D000970:Antineoplastic Agents; D004988:Ethers, Cyclic; D006027:Glycosides; D006571:Heterocyclic Compounds; D007094:Imides; D007783:Lactones; D009574:Nitro Compounds; D009603:Nitroso Compounds; D010940:Plant Proteins; D011809:Quinones; D013729:Terpenes