1. GlaxoSmithKline, Collegeville, Pennsylvania, USA
2. ViiV Healthcare, Research Triangle Park, North Carolina, USA
3. Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
4. The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
5. State Drug Clinical Trial Institution, Beijing Youan Hospital, Capital Medical University, Beijing, China
6. GlaxoSmithKline, Research Triangle Park, North Carolina, USA