Labor pain in the 21st century.
King
Tekoa
T
D015360:Analgesia, Epidural; D016362:Analgesia, Obstetrical; D000701:Analgesics, Opioid / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D008880:Midwifery / Q000639:trends*; D010146:Pain / Q000517:prevention & control*; D011247:Pregnancy
D000701:Analgesics, Opioid