All the fields of the congenital heart diseases, espedially on the surgical fields.
Links
[1] http://www.shizuoka-pho.jp/kodomo/
[2] https://www.ctsnet.org/user/login?destination=user/408504
[3] https://www.ctsnet.org/print/home/ksakamoto
[4] https://www.ctsnet.org/society/ascvts
[5] https://www.ctsnet.org/society/ctsnet
[6] https://www.ctsnet.org/society/eacts
[7] https://www.ctsnet.org/society/jats
[8] https://www.ctsnet.org/society/sts