Use of transdermal fentanyl.
Biehl
A G
AG
D000279:Administration, Cutaneous; D005283:Fentanyl / Q000008:administration & dosage*; D006484:Hemorrhoids / Q000601:surgery*; D006801:Humans; D010149:Postoperative Pain / Q000517:prevention & control*
D005283:Fentanyl