1 Department of Surgery, University of Pennsylvania, Philadelphia, PA 19104, USA; Leonard Davis Institute of Health Policy, Philadelphia, PA, USA; Corporal Michael J Crescenz Veterans Affairs Medical Center, Philadelphia, PA, USA. Electronic address: robert.krouse@pennmedicine.upenn.edu.
2 SWOG Cancer Research Network Statistics and Data Management Center, Fred Hutchinson Cancer Center, Seattle, WA, USA.
3 Division of Nursing Research and Education, City of Hope National Medical Center, Duarte, CA, USA.
4 Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Duke Cancer Institute, Durham, NC, USA.
5 Northwell Health Cancer Institute, Lake Success, NY, USA.
6 Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA.