Nulliparas and epidural analgesia.
Walker
M
M
D015360:Analgesia, Epidural / Q000706:statistics & numerical data*; D016362:Analgesia, Obstetrical / Q000706:statistics & numerical data*; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D009035:Mothers / Q000193:education* / Q000523:psychology*; D010298:Parity; D011247:Pregnancy