Authors: James M Roberts; Leslie Myatt; Catherine Y Spong; Elizabeth A Thom; John C Hauth; Kenneth J Leveno; Gail D Pearson; Ronald J Wapner; Michael W Varner; John M Thorp; Brian M Mercer; Alan M Peaceman; Susan M Ramin; Marshall W Carpenter; Philip Samuels; Anthony Sciscione; Margaret Harper; Wendy J Smith; George Saade; Yoram Sorokin; Garland B Anderson Journal: N Engl J Med Date: 2010-04-08 Impact factor: 91.245