Potency versus cost of narcotics.
D003363:Cost Control; D004469:Economics, Hospital; D005283:Fentanyl / Q000031:analogs & derivatives; D006801:Humans; D009294:Narcotics; D017409:Sufentanil
D009294:Narcotics; D017409:Sufentanil; D005283:Fentanyl