Rectal analgesia for labor and delivery: an historical assessment.
Vasdev
Gurinder M
GM
Mayo Clinic, Rochester, Minnesota, USA.
Bacon
Douglas R
DR
D000285:Administration, Rectal; D016362:Analgesia, Obstetrical / Q000266:history* / Q000379:methods; D000776:Anesthesiology / Q000266:history*; D004986:Ether / Q000008:administration & dosage / Q000266:history*; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy
D004986:Ether