The availability of narcotics and attitudes towards their use.
D000310:Adrenal Gland Neoplasms / Q000503:physiopathology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D009020:Morphine / Q000627:therapeutic use*; D009447:Neuroblastoma / Q000503:physiopathology*; D010146:Pain / Q000188:drug therapy*
D009020:Morphine; D008691:Methadone