Efficacy of epidural analgesia during labour and delivery: a comparison between singleton vertex presentation, singleton breech presentation and twin pregnancies.
Villevieille
T
T
Mercier
F
F
Shannon
P E
PE
Auroy
Y
Y
Benhamou
D
D
D015360:Analgesia, Epidural; D016362:Analgesia, Obstetrical; D000704:Analysis of Variance; D001946:Breech Presentation; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007746:Labor Presentation; D007743:Labor, Obstetric / Q000187:drug effects*; D010146:Pain / Q000188:drug therapy*; D011247:Pregnancy; D011272:Pregnancy, Multiple / Q000187:drug effects*; D014427:Twins