Correspondence to: Kisho Ohtani, MD, PhD, Department of Cardiovascular Internal Medicine, Clinical Research Institute, National Hospital Organization, Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka 810-8563, Japan. Email

E-mail Address: [email protected]

https://orcid.org/0000-0003-2151-3350

Department of Cardiovascular Internal Medicine, Clinical Research Institute, National Hospital Organization, Kyushu Medical Center, Fukuoka, Japan. (H.I., K.O., T.N.)