We would like to thank American Journal Experts (https://www.aje.com/) for English language editing. We would like to thank all of our colleagues who participated in the KIDCAR study, including the following representatives of the collaborating institutions that contributed patient data: Kentaro Aso, MD, PhD, St. Marianna University (3); Mamoru Ayusawa, MD, PhD, Nihon University (6); Ryota Ebata, MD, Chiba University Hospital (5); Ryuji Fukazawa, MD, PhD, Nippon Medical School Hospital (4); Kenji Furuno, MD, PhD, Fukuoka Children’s Medical Center (12); Shigeto Fuse, MD, PhD; NTT EAST Medical Center Sapporo (4); Keiichi Hirono, MD, PhD, University of Toyama (1); Tatsunori Hokosaki, MD, PhD, Yokohama City University Hospital (28); Takafumi Honda, MD, Tokyo Woman’s Medical University Yachiyo Medical Center (0); Hitoshi Horigome, MD, University of Tsukuba Hospital (5); Susumu Hosokawa, MD, Tokyo Medical and Dental University Hospital (6); Kazuyuki Ikeda, MD, PhD, Kyoto Prefectural University of Medicine (7); Sachiko Inukai, MD, PhD, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital (1); Satoru Iwashima, MD, PhD, Chutoen General Medical Center (5); Taichi Kato, MD, PhD, Nagoya University Graduate School of Medicine (0); Yasuhiro Katsube, MD, Nippon Medical School Musashikosugi Hospital (3); Kanta Kishi, MD, Osaka Medical and Pharmaceutical University Hospital (1); Tohru Kobayashi, MD, PhD, National Center for Child Health and Development (12); Kazuki Kudo, MD, PhD, Keio University Hospital (1); Kenji Kuraishi, MD, Ogaki Municipal Hospital (1); Tomoyo Matsubara, MD, PhD, Dokkyo Medical University Saitama Medical Center (0); Masahiro Misawa, MD, Tokyo Metropolitan Bokutoh Hospital (4); Yoshihide Mitani, MD, PhD, Mie University Graduate School of Medicine (0); Masaru Miura, MD, PhD, Tokyo Metropolitan Children’s Medical Center (18); Noriko Nagai, MD, Okazaki City Hospital (3); Naomi Nakagawa, MD, Hiroshima City Hiroshima Citizen’s Hospital (3); Koichi Nihei, MD, PhD, Toho University Ohashi Medical Center (0); Yuichi Nomura, MD, PhD, Kagoshima City Hospital (0); Fujito Numano, MD, Niigata University Medical & Dental Hospital (15); Yoshiyuki Sakai, MD, Hakodate Municipal Hospital (0); Mitsuru Seki, MD, PhD, Jikei Children’s Medical Center Tochigi (3); Shinya Shimoyama, MD, PhD, Gunma Children’s Medical Center (3); Junko Shiono, MD, PhD, Ibaraki Children’s Hospital (6); Kenji Suda, MD, PhD, Kurume University Hospital (4); Eisuke Suganuma, MD, PhD, Saitama Children’s Medical Center (18); Hiroyuki Suzuki, MD, PhD, Wakayama Medical University Hospital (0); Tsutomu Takahashi, MD, PhD, Saiseikai Utsunomiya hospital (1); Shinichi Takatsuki, MD, PhD, Toho University Medical Center Omori Hospital (4); Atsuhiro Takeda, MD, PhD, Hokkaido University Hospital (2); Manatomo Toyono, MD, PhD, Akita University Hospital (6); Kenji Tsuchiya, MD, Japanese Red Cross Medical Center (2); Etsuko Tsuda, MD, National Cerebral and Cardiovascular Center (2); Kentaro Ueno, MD, PhD, Kagoshima University Hospital (1); Masafumi Utsumi, MD, Shinshu University Hospital (2); Kenji waki, MD, PhD, Kurashiki Central Hospital (5); and Kenichiro Yamamura, MD, PhD, Kyushu University (1).