Key points are not available for this paper at this time.
Obstetric Anesthesia Digest: June 2008 - Volume 28 - Issue 2 - p 93-94 doi: 10.1097/01.aoa.0000319809.05071.6b
Sedgh et al. (Fri,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: