1. Emergency Medical Center and Poison Center, Saitama Medical University Hospital, Saitama, Japan;
2. Department of Pharmacy, Saitama Medical University Hospital, Saitama, Japan;
3. Department of Emergency, Disaster and General Medicine, Iwate Medical University School of Medicine, Iwate, Japan;
4. Department of Forensic Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan