Affiliations:
- Department of Radiation Oncology,
Sano Kosei General Hospital,
1728, Horigome-machi, Sano, Tochigi, 327-8511, Japan.
- Department of Radiation Oncology, Gunma University Graduate School of
Medicine, 3-39-22, Showa-machi, Maebashi, Gunma, 371-8511, Japan.
- Gunma University Heavy Ion Medical Center, 3-39-22, Showa-machi,
Maebashi, Gunma, 371-8511, Japan.
- Department of Gastroenterology, Sano Kosei General Hospital, 1728,
Horigome-machi, Sano, Tochigi, 327-8511, Japan.