Diseases, dichotomies, and detail men.
D000700:Analgesics / Q000627:therapeutic use*; D004345:Drug Industry; D011307:Drug Prescriptions; D004502:Education, Medical, Continuing; D003932:Heroin / Q000627:therapeutic use; D006801:Humans; D008614:Meperidine / Q000627:therapeutic use; D009020:Morphine / Q000627:therapeutic use; D009294:Narcotics / Q000627:therapeutic use*; D019966:Substance-Related Disorders
D000700:Analgesics; D009294:Narcotics; D003932:Heroin; D009020:Morphine; D008614:Meperidine