Extensive Disease Small Cell Lung Cancer

• Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University — Changsha, Hunan, China
• Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Science — Jinan, Shandong, China
• Department of Thoracic Medical Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences — Hangzhou, Zhejiang, China
• First Affiliated Hospital, School of Medicine, Zhejiang University — Hangzhou, Zhejiang, China

Not specified

• Hyogo Cancer Center — Akashi, Japan
• Asahikawa Medical University Hospital — Asahikawa, Japan
• National Hospital Organization Asahikawa Medical Center — Asahikawa, Japan
• Juntendo University Hospital — Bunkyō City, Japan

• Akashi Medical Center — Akashi, Japan
• Hyogo Cancer Center — Akashi, Japan
• Hyogo Prefectural Amagasaki General Medical Center — Amagasaki, Japan
• Asahikawa Medical University Hospital — Asahikawa, Japan

• Henan Cancer Hospital — Zhengzhou, Henan, China