Address correspondence to:
JA Hiroshima General Hospital, Department of Cardiovascular Surgery
1-3-3 Zigozen, Hatsukaichi, Hiroshima 738-8503
Masaki Hamamoto – Substantial contributions to conception and design, Acquisition of data, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Guarantor of submission
The corresponding author is the guarantor of submission.
Source of support
Conflict of interest
Authors declare no conflict of interest.