Bon-Kwon Koo MD, PhD ^a,∗, Seokhun Yang MD ^a,∗, Jae Wook Jung MD ^a, Jinlong Zhang MD, PhD ^b, Keehwan Lee MD ^a, Doyeon Hwang MD ^a, Kyu-Sun Lee MD, PhD ^c, Joon-Hyung Doh MD, PhD ^d, Chang-Wook Nam MD, PhD ^e, Tae Hyun Kim MD ^f, Eun-Seok Shin MD, PhD ^g, Eun Ju Chun MD, PhD ^h, Su-Yeon Choi MD, PhD ⁱ, Hyun Kuk Kim MD, PhD ^j, Young Joon Hong MD, PhD ^k, Hun-Jun Park MD, PhD ^l, Song-Yi Kim MD ^m, Mirza Husic MD, PhD ⁿ, Jess Lambrechtsen MD, PhD ⁿ, Jesper M. Jensen MD, PhD ^o, Bjarne L. Nørgaard MD, PhD ^o, Daniele Andreini MD, PhD ^p,q, Pal Maurovich-Horvat MD, PhD ^r, Bela Merkely MD, PhD ^s, Martin Penicka MD, PhD ^t, Bernard de Bruyne MD, PhD ^t, Abdul Ihdayhid MD, PhD ^u, Brian Ko MD, PhD ^u, Georgios Tzimas MD ^v, Jonathon Leipsic MD, PhD ^v, Javier Sanz MD ^w, Mark G. Rabbat MD ^x, Farhan Katchi MD ^y, Moneal Shah MD ^z, Nobuhiro Tanaka MD, PhD ^aa, Ryo Nakazato MD, PhD ^bb, Taku Asano MD, PhD ^bb, Mitsuyasu Terashima MD, PhD ^cc, Hiroaki Takashima MD, PhD ^dd, Tetsuya Amano MD, PhD ^dd, Yoshihiro Sobue MD, PhD ^ee, Hitoshi Matsuo MD, PhD ^ee, Hiromasa Otake MD, PhD ^ff, Takashi Kubo MD, PhD ^aa, Masahiro Takahata MD, PhD ^gg, Takashi Akasaka MD, PhD ^gg, Teruhito Kido MD, PhD ^hh, Teruhito Mochizuki MD, PhD ^hh, Hiroyoshi Yokoi MD, PhD ⁱⁱ, Taichi Okonogi MD ^jj, Tomohiro Kawasaki MD, PhD ^jj, Koichi Nakao MD, PhD ^kk, Tomohiro Sakamoto MD, PhD ^kk, Taishi Yonetsu MD, PhD ^ll, Tsunekazu Kakuta MD, PhD ^mm, Yohei Yamauchi MD, PhD ⁿⁿ, Jeroen J. Bax MD, PhD ^oo, Leslee J. Shaw PhD ^w, Peter H. Stone MD ^pp, Jagat Narula MD, PhD ^qq

^aDepartment of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul National University of College of Medicine, Seoul, South Korea

^bDepartment of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China

^cDepartment of Cardiology, Eulji University Medical Center, Daejeon, South Korea

^dDepartment of Medicine, Inje University Ilsan Paik Hospital, Goyang, South Korea

^eDepartment of Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea

^fDepartment of Cardiology, Ulsan Medical Center, Ulsan, South Korea

^gDepartment of Cardiology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea

^hDepartment of Radiology, Seoul National University Bundang Hospital, Seongnam, South Korea

ⁱDepartment of Internal Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea

^jDepartment of Internal Medicine and Cardiovascular Center, Chosun University Hospital, University of Chosun College of Medicine, Gwangju, South Korea

^kDepartment of Cardiology, Chonnam National University Hospital, Gwangju, South Korea

^lDivision of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, South Korea

^mDivision of Cardiology, Department of Internal Medicine, Jeju National University Hospital, Jeju, South Korea

ⁿDepartment of Cardiology, Odense University Hospital, Svendborg, Denmark

^oDepartment of Cardiology, Aarhus University Hospital, Aarhus, Denmark

^pCentro Cardiologico Manzano, Istituti di Ricovero e Cura a Carattere Scientifico Milan, Italy

^qDepartment of Biomedical and Clinical Sciences, University of Milan, Milan, Italy

^rDepartment of Radiology, Medical Imaging Centre, Semmelweis University, Budapest, Hungary

^sThe Heart and Vascular Center, Semmelweis University, Budapest, Hungary

^tCardiovascular Center Aalst, Onze Lieve Vrouwziekenhuis-Clinic, Aalst, Belgium

^uMonash Cardiovascular Research Centre, Monash University and Monash Heart, Monash Health, Clayton, Victoria, Australia

^vDepartment of Medicine and Radiology, University of British Columbia, Vancouver, British Columbia, Canada

^wCardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA

^xDivision of Cardiology, Loyola University Chicago, Chicago, Illinois, USA

^yDepartment of Cardiology, Washington University School of Medicine in St. Louis, Missouri, USA

^zDepartment of Cardiology, Allegheny General Hospital, Pittsburgh, Pennsylvania, USA

^aaDepartment of Cardiology, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan

^bbCardiovascular Center, St Luke’s International Hospital, Tokyo, Japan

^ccDepartment of Cardiovascular Medicine, Toyohashi Heart Center, Aichi, Japan

^ddDepartment of Cardiology, Aichi Medical University, Nagakute, Japan

^eeDepartment of Cardiovascular Medicine, Gifu Heart Center, Gifu, Japan

^ffDivision of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan

^ggDepartment of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

^hhDepartment of Radiology, Ehime University Graduate School of Medicine, Ehime, Japan

ⁱⁱCardiovascular Center, Fukuoka Sanno Hospital, Fukuoka, Japan

^jjCardiovascular Center, Shin-Koga Hospital, Kurume, Japan

^kkDivision of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center, Kumamoto, Japan

^llDepartment of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan

^mmDivision of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital, Ibaraki, Japan

ⁿⁿDepartment of Cardiology, Osaka Medical and Pharmaceutical University, Takatsuki, Japan

^ooDepartment of Cardiology, Heart Lung Centre, Leiden University Medical Centre, Leiden, the Netherlands

^ppDivision of Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA

^qqMcGovern Medical School, University of Texas Health Sciences Center, Houston, Texas, USA

Address for correspondence: Dr Bon-Kwon Koo

^∗Drs Koo and Yang contributed equally to this work.