[1] Northwestern Univ, Feinberg Sch Med, Dept Med Social Sci, Robert H Lurie Comprehens Canc Ctr, Chicago, IL 60611 USA
[2] Roswell Pk Canc Inst, GOG Stat & Data Ctr, Buffalo, NY 14263 USA
[3] SUNY Buffalo, Dept Biostat, Buffalo, NY 14260 USA
[4] Univ Calif Irvine, Chao Family Comprehens Canc Ctr, Orange, CA 92668 USA
[5] Univ Iowa, Iowa City, IA USA
[6] Univ Oklahoma, Oklahoma City, OK USA
[7] Ohio State Univ, Columbus, OH 43210 USA
[8] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[9] Virginia Commonwealth Univ, Richmond, VA USA