1. Department of Internal Medicine, Maruyama Medical Clinic, Hamada, Shimane 697‑0034, Japan
2. Department of Internal Medicine, Hino Hospital, Hino, Tottori 689‑4504, Japan
3. Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Tottori 683‑8504, Japan