title: Playing with pain killers.
authors: C
authors: C
authors: Kalb
mesh_terms: D000701:Analgesics, Opioid / Q000009:adverse effects* / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008297:Male; D009293:Opioid-Related Disorders; D010146:Pain / Q000188:drug therapy*; D014481:United States
chemical_list: D000701:Analgesics, Opioid