Correspondence to: Atsushi Okada, MD, PhD, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka, 564-8565, Japan. Email

E-mail Address: [email protected]

https://orcid.org/0000-0002-0087-4168

Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan. (A.O., C.I.)