[1] Northwestern Univ, Feinberg Sch Med, Div Minimally Invas Gynecol Surg, Dept Obstet & Gynecol, Chicago, IL 60611 USA
[2] Northwestern Univ, Feinberg Sch Med, Galter Hlth Sci Lib, Chicago, IL 60611 USA
[3] Harvard Med Sch, Dept Obstet Gynecol & Reprod Biol, Boston, MA USA
[4] Beth Israel Deaconess Med Ctr, Div Minimally Invas Gynecol Surg, Boston, MA 02215 USA