1. National Cancer Center Hospital East, Chiba, Japan;
2. Institut de Cancérologie de l'Ouest, Nantes, France;
3. Peking University Cancer Hospital & Institute, Beijing, China;
4. Dana-Farber Cancer Institute, Boston, MA;
5. MSD China, Beijing, China;
6. Merck & Co., Inc., Kenilworth, NJ;
7. Merck & Co., Inc., Rahway, NJ;
8. Weill Cornell Medical College and New York Presbyterian Hospital, New York, NY;