Jun Maeda, Kei Inai, Yoshiyuki Furutani, Masaki Sato, Mitsuhiro Kamisago, Shinichi Takatsuki, Tohru Kobayashi, Tomomi Uyeda, Yu Yoshida, Ryo Inuzuka, Hiroyuki Yamagishi, the Committee for Genetics and Epidemiology of Cardiovascular Disease in the Japanese Society of Pediatric Cardiology and Cardiac Surgery