1. Department of Critical Care and Disaster, General Medicine, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Siwa, Iwate, 028-3695, Japan
2. Department of Orthopedic Surgery, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Siwa, Iwate, 028-3695, Japan