^○Takahiro Motonaga, Seigo Okada, Yuji Ohnishi, Takashi Furuta, Shunji Hasegawa (Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Yamaguchi)

^○Takayuki Suzuki¹, Naomi Kitano², Nobuyuki Kakimoto¹, Tomohiro Suenaga¹, Shoichi Shibuta³, Takashi Takeuchi⁴, Hiroyuki Suzuki⁵, Daisuke Tokuhara¹, Clinical Research Network of The Wakayama Kd Study Group⁶ (1.Pediatrics, Wakayama Medical University, Wakayama, 2.Health Care Center, Wakayama Medical University, Wakayama, 3.Pediatrics, Kinan Hospital, Wakayama, 4.Pediatrics, Kainan Medical Hospital, Wakayama, 5.Pediatrics, Tsukushi Medical and Welfare Center, Wakayama, 6.Clinical Research Network of the Wakayama Kawasaki Disease Study Group)

^○Guoying Huang (Pediatric Heart Center, Children's Hospital of Fudan University, Shanghai)

^○Takumi Nishiki^1,2, Jun Maeda¹, Shohei Yamaguchi¹, Yuko Tsuchida^1,3, Shohei Senoo¹, Hiroyuki Yamada¹, Yutaro Koyama¹, Hiroki Nagamine¹, Hirotaka Ohki¹, Masaru Miura¹ (1.Department of Cardiology, Tokyo Metropolitan Children's Medical Center, Tokyo, 2.Department of Pediatrics, The University of Tokyo Hospital, Tokyo, 3.Department of Pediatricsese, Red Cross Medical Center, Tokyo)

^○Naomi Nakagawa¹, Yusuke Shigemitsu¹, Kengo Okamoto¹, Koichi Kataoka¹, Masahiro Kamada¹, Kenta Higashi², Atsushi Tateishi², Kuhikazu Hisamochi² (1.Department of Pediatric Cardiology, Hiroshima City Hospital, Hiroshima, 2.Department of Cardiac Surgery, Hiroshima City Hospital, Hiroshima)

^○Geena Kim^1,2, Aamir Jeewa², Dawn Nicolson², Sunghoon Minn² (1.Department of Pediatrics, Chungnam National University Sejong Hospital, Sejong / Chungnam National University School of Medicine, Daejeon, 2.Division of Cardiology, Labatt Family Heart Centre, Hospital for Sick Children, Toronto)

^○Swee Chye Quek^1,2 (1.National University of Singapore, 2.National University Hospital, Singapore)