[1] Cleveland Clin, Dept OBGYN, Womens Hlth Inst, Cleveland, OH 44195 USA
[2] Case Western Univ, Sch Med, Cleveland, OH USA
[3] Cleveland Clin, Sect Biostat, Quantitat Hlth Sci, Cleveland, OH 44195 USA
[4] Cleveland Clin, Div Gynecol Oncol, Womens Hlth Inst, Cleveland, OH 44195 USA