1. Department of Clinical Neuroscience and Therapeutics Hiroshima University, Graduate School of Biomedical and Health Sciences Kasumi, Minami‐ku Hiroshima Japan
2. Department of Emergency and Critical Care Medicine St. Marianna University School of Medicine Kawasaki Japan
3. Department of Family Medicine, General Practice and Community Health Institute of Medicine, University of Tsukuba Tsukuba Japan
4. Department of Primary Care and Medical Education Institute of Medicine, University of Tsukuba Tsukuba Japan