1Growth Factor Division, National Cancer Center Research Institute, Tokyo, Japan
2Department of Endocrine Surgery, Tokyo Women’s Medical University, Tokyo, Japan
3Yaizu Municipal Hospital, Yaizu, Shizuoka, Japan
4Department of Internal Medicine, Gifu Red Cross Hospital, Gifu, Japan
5Kuma Hospital, Kobe, Japan
6Second Department of Internal Medicine, Asahikawa Medical College, Asahikawa, Hokkaido, Japan
7Department of Medicine III, Osaka University Medical School, Suita, Osaka, Japan
8Third Department of Internal Medicine, Fukui Medical School, Yoshida-gun, Fukui, Japan
9Second Department of Surgery, School of Medicine, University of Tokushima, Tokushima, Japan
10Kitakyushu Municipal Medical Center, Kitakyushu, Fukuoka, Japan
11Department of Urology, Oita Medical University, Oita-gun, Oita, Japan
12Second Department of Surgery, Gunma University School of Medicine, Maebashi, Japan
13Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
14First Department of Internal Medicine, Kitakyushu, Fukuoka, Japan
15First Department of Surgery, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
16Hyogo Prefecture Kaibara Hospital, Hikami-gun, Hyogo, Japan
17Department of Medicine, Shinko Hospital, Kobe, Japan
18Niigata Prefecture Central Hospital, Joetsu, Niigata, Japan
19Department of Surgery, Himeji Red Cross Hospital, Himeji, Japan
20First Department of Internal Medicine, Kobe University School of Medicine. Kobe, Japan