^○Kiyoshi Egawa, Sachiko Nakakubo, Hideaki Shiraishi (北海道大学病院小児科)

^○Masahiko Kimura¹, Takeshi Taketani², Ryuuji Sota³, Hiroshi Ito³ (1.Kimura Children and Family Clinic, Izumo, Japan, 2.Department of Pediatrics Shimane University Faculty of Medicine, Izumo, Japan, 3.Izumo Fire Department, Izumo, Japan)

^○Yuto Arai, Tohru Okanishi, Sotaro Kanai, Tatsuya Kawaguchi, Kento Ohta, Yoshihiro Maegaki (Division of Child Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Yonago, Japan)

^○Yoshie Kurokawa, Hirokazu Yamagishi, Tadahiro Mitani, Kazuhiro Muramatsu, Hitoshi Osaka (Department of Pediatrics, Jichi Medical University Hospital, Shimotsuke, Japan)

^○Yayoi Murano¹, Kishin Tokuyama¹, Tsubasa Kitamura¹, Shun Toriumi¹, Daisuke Yoneoka², Tomoyuki Nakazawa¹ (1.Division of Pediatrics, Tokyo Metropolitan Toshima Hospital, Tokyo, Japan, 2.National center of Infectious disease, Tokyo, Japan)