1. Department of Endocrinology and Metabolism, Uonuma Kikan Hospital, Minamiuonuma, Niigata, Japan
2. Department of Respiratory Medicine, Uonuma Kikan Hospital, Minamiuonuma, Niigata, Japan
3. Department of Neurosurgery, Uonuma Kikan Hospital, Minamiuonuma, Niigata, Japan