title: Letter: ICRF 159.
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D009374:Neoplasms, Experimental / Q000188:drug therapy; D010879:Piperazines / Q000627:therapeutic use*; D011407:Propane / Q000627:therapeutic use
chemical_list: D000970:Antineoplastic Agents; D010879:Piperazines; D011407:Propane