1 Department of Emergency Medicine, Okayama City Hospital, 3-20-1, Omote-Cho, Kitanagase, Okayama-City, 700-0962, Japan. superonewex0506@yahoo.co.jp.
2 Department of General Internal Medicine, Okayama City Hospital, Okayama, Japan. superonewex0506@yahoo.co.jp.
3 Department of General Internal Medicine, Okayama City Hospital, Okayama, Japan.
4 Department of Endocrinology, Okayama City Hospital, Okayama, Japan.
5 Department of Endocrinology, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
6 Department of Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.