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1 Department of Emergency Medicine, Fukui Prefectural Hospital, Fukui, Japan.
2 Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan; Scientific Research WorkS Peer Support Group, Osaka, Japan; Department of Orthopedic Surgery, Miyamoto Orthopedic Hospital, Okayama, Japan.
3 Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN; Scientific Research WorkS Peer Support Group, Osaka, Japan.
1 Department of Emergency Medicine, Fukui Prefectural Hospital, Fukui, Japan.
2 Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan; Scientific Research WorkS Peer Support Group, Osaka, Japan; Department of Orthopedic Surgery, Miyamoto Orthopedic Hospital, Okayama, Japan.
3 Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN; Scientific Research WorkS Peer Support Group, Osaka, Japan.