Author contributions:
Kazutaka Nakasone: ,,,,,,,clinical practice/data sampling/drafting article
Koji Fukuzawa: ,,,,,,,,concept/design/data analysis/interpretation/drafting article
Kunihiko Kiuchi: ,,,,,,data collection/statics
Mitsuru Takami: ,,,,,,data collection/statics
Jun Sakai: ,,,,,,data collection/statics
Toshihiro Nakamura: ,,,,,,data collection/statics
Atsusuke Yatomi: ,,,,,,data collection/statics
Yusuke Sonoda: ,,,,,,data collection/statics
Hiroyuki Takahara: ,,,,,,data collection/statics
Kyoko Yamamoto: ,,,,,,data collection/statics
Yuya Suzuki: ,,,,,,data collection/statics
Kenichi Tani: ,,,,,,data collection/statics
Hidehiro Iwai: ,,,,,,data collection/statics
Yusuke Nakanishi: ,,,,,,data collection/statics
Ken-ichi Hirata: approval of article
Conflict of Interest : The Section of Arrhythmia is supported by an endowment from Abbott JAPAN and Medtronic JAPAN and has received a scholarship fund from Biotronik JAPAN. Ken-ichi Hirata chairs the Section, and Koji Fukuzawa and Kunihiko Kiuchi belong to the Section. However, all authors report no conflict of interest for this manuscript’s contents.