title: Pumping in pain relief.
mesh_terms: D005260:Female; D003932:Heroin / Q000008:administration & dosage*; D006801:Humans; D007279:Injections, Subcutaneous; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000503:physiopathology*; D010148:Intractable Pain / Q000188:drug therapy*; D012646:Self Administration / Q000295:instrumentation* / Q000379:methods
chemical_list: D003932:Heroin