1 Department of Obstetrics and Gynecology, University of California, Los Angeles, Los Angeles, CA.
2 Department of Radiation Oncology, Stanford University, Stanford, CA.
3 Division of Gynecologic Oncology, California Pacific Medical Center, Palo Alto Medical Foundation, Sutter Research Institute, 795 El Camino Real, San Francisco, CA 94301. Electronic address: chanjohn@sutterhealth.org.