1. Ki YJ, Kang J, Zhang J, Hu X, Jiang J, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Hwang D, Shin ES, Kim HS, Tahk SJ, Wang J, Koo BK. Prognostic Implications of Quantitative Flow Ratio and Plaque Characteristics in Intravascular Ultrasound-Guided Treatment Strategy. JACC Cardiovasc Interv. 2024 2. Ki YJ, Han K, Kim HS, Han JK. Smoking and cardiovascular outcomes after percutaneous coronary intervention: a Korean study. Eur Heart J. 2023 3. Ki YJ, Chun EJ, Youn TJ. Characteristic Virtual Histology-Intravascular Ultrasound Imaging of Immunoglobulin G4-Related Coronary Artery Disease Patient. Korean Circ J. 2023 4. Ki YJ, Jeong YH. Thrombosis and Anticoagulation in East Asian Patients With COVID-19: Another Phenotype of "East Asian Paradox". JACC Asia. 2022 5. Ki YJ, Woo JS, Kim W. Acute Left Main Coronary Artery Occlusion by Embolization of Vegetation in Patient With Infective Endocarditis. Korean Circ J. 2022 6. (Co-First) Yun HE, Ki YJ, Kim W, Kim SH, Kim KH, Lee MG, Lim YM, Kim JM, Kang WY, Kwon IY, Cha SY, Cho JH. Angiographic and clinical outcomes in patients with versus without diabetes mellitus after revascularization with BioMime sirolimus-eluting stent. Coron Artery Dis. 2022 7. Ki YJ, Han SJ, Cha TJ, Lee JH, Seo EK, Yang JW, Hwang WM, Jin DK, Park JH, Ryu HY, Park CG, Lee JH, Choi SW, Cho EJ, Kim W. A Multi-Center, Prospective Observational Study to Investigate the Safety, Compliance, and Efficacy of Omethyl QTlet Soft Capsule. J Clin Med. 2022 8. Ki YJ, Lee BK, Park KW, Bae JW, Hwang D, Kang J, Han JK, Yang HM, Kang HJ, Koo BK, Kim DB, Chae IH, Moon KW, Park HW, Won KB, Jeon DW, Han KR, Choi SW, Ryu JK, Jeong MH, Cha KS, Kim HS; HOST-RP-ACS investigators. Prasugrel-based De-Escalation of Dual Antiplatelet Therapy After Percutaneous Coronary Intervention in Patients With STEMI. Korean Circ J. 2022 9. Ki YJ, Kang J, Yang HM, Woo Park K, Kang HJ, Koo BK, Cho MC, Kim CJ, Ahn Y, Jeong MH, Han JK, Kim HS; investigators for Korea Acute Myocardial Infarction Registry-National Institute of Health (KAMIR-NIH). Immediate Compared With Delayed Percutaneous Coronary Intervention for Patients With ST-Segment-Elevation Myocardial Infarction Presenting ≥12 Hours After Symptom Onset Is Not Associated With Improved Clinical Outcome. Circ Cardiovasc Interv. 2021 10. Ki YJ, Kang J, Lee HS, Chang M, Han JK, Yang HM, Park KW, Kang HJ, Koo BK, Kim HS. Optimal Oversizing Index Depending on Valve Type and Leakage-Proof Function for Preventing Paravalvular Leakage after Transcatheter Aortic Valve Implantation. J Clin Med. 2020 11. Ki YJ, Jung JH, Han JK, Hong S, Cho JH, Gwon HC, Lee SY, Rhew JY, Chae JK, Chae IH, Yang HM, Park KW, Kang HJ, Koo BK, Kim HS. Clinical Implications of Bifurcation Angles in Left Main Bifurcation Intervention Using a Two-Stent Technique. J Interv Cardiol. 2020 12. Ki YJ, Kang J, Park J, Han JK, Yang HM, Park KW, Kang HJ, Koo BK, Kim HS. Efficacy and Safety of Long-Term and Short-Term Dual Antiplatelet Therapy: A Meta-Analysis of Comparison between Asians and Non-Asians. J Clin Med. 2020 13. Ki YJ, Park KW, Kang J, Kim CH, Han JK, Yang HM, Kang HJ, Koo BK, Kim HS. Safety and Efficacy of Second-Generation Drug-Eluting Stents in Real-World Practice: Insights from the Multicenter Grand-DES Registry. J Interv Cardiol. 2020 14. Ki YJ, Kwon SA, Kim HL, Seo JB, Chung WY. The Prevention of Contrast Induced Nephropathy by Sarpogrelate: a Prospective Randomized Controlled Clinical Trial. J Korean Med Sci. 2019 15. Ki YJ, Kim HL, Oh S, Jeon WK, Rhee TM, Lim WH, Seo JB, Kim SH, Kim MA, Zo JH. Gender Related Association between Arterial Stiffness and Aortic Root Geometry. J Cardiovasc Imaging. 2019 16. Ki YJ, Seo JB, Kim HL, Lim WH, Seo HY, Lee JY, Chung WY. Comparison of endothelial function improvement estimated with reactive hyperemia index between ramipril and telmisartan in hypertensive patients. Clin Hypertens. 2017 17. Lee JH, Ahn SG, Jeon HS, Lee JW, Youn YJ, Zhang J, Hu X, Wang J, Lee JM, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Yoon MH, Tahk SJ, Kim U, Ki YJ, Shin ES, Hwang D, Kang J, Kim HS, Koo BK. Discordance Between Angiographic Assessment and Fractional Flow Reserve or Intravascular Ultrasound in Intermediate Coronary Lesions: A Post-hoc Analysis of the FLAVOUR Trial. Korean Circ J. 2024 18. Yang S, Kang J, Hwang D, Zhang J, Jiang J, Hu X, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Lee JM, Ki YJ, Shin ES, Kim HS, Tahk SJ, Wang J, Koo BK. Physiology- or Imaging-Guided Strategies for Intermediate Coronary Stenosis. JAMA Netw Open. 2024 19. Lee JM, Kim H, Hong D, Hwang D, Zhang J, Hu X, Jiang J, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Kang J, Ahn SG, Yoon MH, Kim U, Ki YJ, Shin ES, Choi KH, Park TK, Yang JH, Song YB, Choi SH, Gwon HC, Koo BK, Kim HS, Tahk SJ, Wang J, Hahn JY; FLAVOUR Investigators. Clinical Outcomes of Deferred Lesions by IVUS Versus FFR-Guided Treatment Decision. Circ Cardiovasc Interv. 2023 20. Zhang J, Jiang J, Hu X, Sun Y, Li C, Zhu L, Gao F, Dong L, Liu Y, Shen J, Ni C, Wang K, Chen Z, Chen H, Li S, Yang S, Kang J, Hwang D, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Lee JM, Ki YJ, Shin ES, Kim CH, Tahk SJ, Koo BK, Wang J. Sex Differences in Fractional Flow Reserve- or Intravascular Ultrasound-Guided Percutaneous Coronary Intervention. JACC Cardiovasc Interv. 2023 21. Koo BK, Hu X, Kang J, Zhang J, Jiang J, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Lee JM, Hwang D, Ki YJ, Shin ES, Kim HS, Tahk SJ, Wang J; FLAVOUR Investigators. Fractional Flow Reserve or Intravascular Ultrasonography to Guide PCI. N Engl J Med. 2022 22. Cha MJ, Oh GC, Ki YJ, Chang M, Kang J, Han JK, Yang HM, Park KW, Kang HJ, Koo BK, Oh S, Kim HS. Time Course and Risk Factors of New-Onset Complete Atrioventricular Block After Transcatheter Aortic Valve Implantation. Int Heart J. 2021 23. Park CS, Yang HM, Ki YJ, Kang J, Han JK, Park KW, Kang HJ, Koo BK, Kim CJ, Cho MC, Kim YJ, Chae SC, Jeong MH, Kim HS; KAMIR-NIH Registry. Left Ventricular Ejection Fraction 1 Year After Acute Myocardial Infarction Identifies the Benefits of the Long-Term Use of β-Blockers: Analysis of Data From the KAMIR-NIH Registry. Circ Cardiovasc Interv. 2021 24. Kim M, Park KW, Lee HS, Ki YJ, Kang J, Kim CH, Han JK, Yang HM, Kang HJ, Koo BK, Kim HS. The validation of the dual antiplatelet therapy score in East Asians receiving percutaneous coronary intervention with exclusively second generation drug-eluting stents. Catheter Cardiovasc Interv. 2021 25. Kang J, Park KW, Lee HS, Zheng C, Rhee TM, Ki YJ, Chang M, Han JK, Yang HM, Kang HJ, Koo BK, Kim HS. Relative Impact of Clinical Risk Versus Procedural Risk on Clinical Outcomes After Percutaneous Coronary Intervention. Circ Cardiovasc Interv. 2021 26. Lee HS, Kang J, Park KW, Ki YJ, Chang M, Han JK, Yang HM, Kang HJ, Koo BK, Kim HS. Procedural optimization of drug-coated balloons in the treatment of coronary artery disease. Catheter Cardiovasc Interv. 2021 27. Kang J, Yun JP, Ki YJ, Lee HS, Han JK, Yang HM, Park KW, Kang HJ, Koo BK, Kim HS. A New Hemodynamic Index Predicting Paravalvular Regurgitation After TAVR: Dicrotic AR Index. JACC Cardiovasc Interv. 2020 28. Lee HS, Park KW, Kang J, Ki YJ, Chang M, Han JK, Yang HM, Kang HJ, Koo BK, Kim HS. Sarcopenia Index as a Predictor of Clinical Outcomes in Older Patients with Coronary Artery Disease. J Clin Med. 2020 29. Park J, Han JK, Chang M, Ki YJ, Kang J, Yang HM, Cho HJ, Park KW, Kang HJ, Koo BK, Kim HS. Impact of Intensive Glucose Control in Patients with Diabetes Mellitus Undergoing Percutaneous Coronary Intervention: 3-Year Clinical Outcomes. J Clin Med. 2020 30. Cho JH, Cho HJ, Lee HY, Ki YJ, Jeon ES, Hwang KK, Chae SC, Baek SH, Kang SM, Choi DJ, Yoo BS, Kim KH, Kim JJ, Oh BH. Neutrophil-Lymphocyte Ratio in Patients with Acute Heart Failure Predicts In-Hospital and Long-Term Mortality. J Clin Med. 2020 31. Kang J, Park KW, Ki YJ, Park J, Rhee T, Kim CH, Han JK, Yang HM, Kang HJ, Koo BK, Nakamura M, Hamasaki T, Yokoi H, Cohen D, Kim HS. Development and Validation of an Ischemic and Bleeding Risk Evaluation Tool in East Asian Patients Receiving Percutaneous Coronary Intervention. Thromb Haemost. 2019 32. Jeon WK, Kim MA, Kim HL, Ki YJ, Rhee TM, Lim WH, Seo JB, Kim SH, Zo JH. Association between aortic knob width and invasively measured aortic pulse pressure. Blood Press Monit. 2018 33. Cha MJ, Ki YJ, Choi EK, Oh S. Vasospastic Angina, Especially Involving Coronary Arteries Supplying Atria, is a Predictor for Atrial Fibrillation. J Cardiovasc Dis Diagn. 2017