1. Department of Medical Oncology, Kyorin University School of Medicine, Tokyo
2. Independent Advisory Board for Erlotinib, Tokyo
3. Department of Respiratory Medicine and Oncology, Nippon Medical School Graduate School of Medicine, Tokyo
4. Department of Medical Oncology, Showa University Fujigaoka Hospital, Tokyo
5. Hepatobiliary and Pancreatic Oncology Division, National Cancer Center Hospital, Tokyo
6. Chugai Pharmaceuticals Ltd, Tokyo, Japan