1. National Cancer Center Hospital East, Kashiwa, Japan
2. National Cancer Center Hospital, Tokyo, Japan
3. Center for Clinical Oncology, Okayama University Hospital, Okayama, Japan
4. Okayama University Hospital, Okayama, Japan
5. Asan Medical Center, Seoul, Republic of Korea
6. Gustave Roussy, Department of Medical Oncology, Thoracic Group, Villejuif, France
7. Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
8. Leiden University Medical Center, Leiden, the Netherlands
9. Netherlands Cancer Institute, Amsterdam, the Netherlands
10. Léon Bérard Center, Lyon, France
11. Centre Hospitalier Universitaire Nantes, Nantes University, Nantes, France
12. Department of Oncology, Azienda Ospedaliero-Universitaria San Luigi Gonzaga, Orbassano, University of Turin, Turin, Italy
13. Kindai University Hospital, Osaka, Japan
14. Aichi Cancer Center Hospital, Aichi, Japan
15. Seoul National University College of Medicine and Seoul National University Hospital, Seoul, South Korea
16. Chang Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan
17. National Taiwan University Hospital and National Taiwan University Cancer Center, Taipei, Taiwan
18. Daiichi Sankyo Inc, Basking Ridge, NJ
19. Daiichi Sankyo, Tokyo, Japan
20. Dana-Farber Cancer Institute, Boston, MA