1. Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
2. Botswana-University of Pennsylvania Partnership, Gaborone, Botswana
3. Department of Obstetrics and Gynecology, Faculty of Medicine, University of Botswana, Gaborone, Botswana
4. Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, CT
5. Department of Oncology, Princess Marina Hospital, Gaborone, Botswana
6. University of Botswana, Gaborone, Botswana
7. Dana-Farber Cancer Institute and Harvard TH Chan School of Public Health, Boston, MA
8. Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA