[Pain relief during labor].
Porozhanova
V
V
D015360:Analgesia, Epidural / Q000009:adverse effects / Q000379:methods*; D000777:Anesthetics; D002045:Bupivacaine; D005260:Female; D005283:Fentanyl; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D009407:Nerve Block / Q000379:methods; D010146:Pain / Q000188:drug therapy* / Q000209:etiology; D011247:Pregnancy
D000777:Anesthetics; D005283:Fentanyl; D002045:Bupivacaine