From the First Department of Internal Medicine, Toho University School of Medicine, Tokyo; Research Institute, Saitama Cancer Center, Saitama; the Department of Internal Medicine, Fujita Health University School of Medicine, Toyoake; Hematology-Oncology Division, Chiba Cancer Center Hospital, Chiba; Toyama Prefectural Central Hospital, Toyama; and the First Department of Internal Medicine, Niigata University School of Medicine, Niigata, Japan.(2001-03-01時点)
