Randomized Controlled Trial

Randomized controlled trial of external cephalic version in term multiparae with or without spinal analgesia.

Br J Anaesth. 2010 May 1;104(5):613-8.
Randomized Controlled Trial

Intravenous nitroglycerin for external cephalic version: a randomized controlled trial.

Obstet Gynecol. 2009 Sep 1;114(3):560-7.
Review

Effect of regional anesthesia on the success rate of external cephalic version: a systematic review and meta-analysis.

Obstet Gynecol. 2011 Nov 1;118(5):1137-44.