1. Department of Emergency and General Medicine, Kumamoto University Hospital
2. Imai Naika Clinic
3. Division of Clinical Laboratory and Blood Transfusion, University of the Ryukyus Hospital
4. Clinical Pharmacology & Therapeutics, University of the Ryukyus School of Medicine
5. Division of Infectious Diseases and General Internal Medicine, Nakagami General Hospital
6. Division of General Internal Medicine, Okinawa Chubu Hospital