1 Department of Emergency, Akita Red Cross Hospital 222-1, Kamikitatesarutanawasirosawa, Akita 010-1495, Japan; Department of Emergency, Showa University Hospital, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan. Electronic address: yugawagarireo@yahoo.co.jp.
2 Department of Plastic Surgery, Akita Red Cross Hospital 222-1, Kamikitatesarutanawasirosawa, Akita 010-1495, Japan.
3 Department of Pediatrics, Tohoku University Seiryo-Machi 1, Aoba-ku, Sendai 980-8574, Japan.
4 Department of Emergency, Showa University Hospital, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan.
5 Department of Emergency, Akita Red Cross Hospital 222-1, Kamikitatesarutanawasirosawa, Akita 010-1495, Japan.