1. Department of OncologyGeorgetown University School of Medicine Washington District of Columbia
2. Department of Cancer EpidemiologyCancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
3. Department of Obstetrics and GynecologyKunming Medical University Kunming China
4. Department of HIV/AIDS Clinical ResearchYunnan Provincial Hospital of Infectious Disease, AIDS Care Center (YNACC) Kunming China
5. Department of EpidemiologyUniversity of North Carolina at Chapel Hill Gillings School of Global Public Health Chapel Hill North Carolina