Appendix 2: Co-investigators Name Location Role Contribution Juneyoung Lee, PhD Korea University College of Medicine Researcher Performed biostatistical review of results Jimi Choi, MS Korea University College of Medicine Researcher Analyzed data Jieun Song, BS Korea University College of Medicine Researcher Analyzed data Hyori Yun, BS Korea University College of Medicine Researcher Analyzed data HyeongWook Kim, BS Korea University College of Medicine Researcher Analyzed data Hoonji Oh, BS Korea University College of Medicine Researcher Analyzed data Ji Sung Lee, PhD Asan Medical Center Researcher Performed biostatistical review of results Soo Joo Lee, MD, PhD Eulji University Hospital Site Coordinated Investigator communication for site Jae Guk Kim, MD, MSc Eulji University Hospital Site Coordinated Investigator communication for site Dong-Eog Kim, MD, PhD Dongguk University Ilsan Hospital Site Coordinated Investigator communication for site Wi-Sun Ryu, MD, PhD Dongguk University Ilsan Hospital Site Coordinated Investigator communication for site Je-Kwan Cha, MD, PhD Dong-A University Hospital Site Coordinated Investigator communication for site Dae-Hyun Kim, MD, PhD Dong-A University Hospital Site Coordinated Investigator communication for site Hee-Joon Bae, MD, PhD Seoul National University Bundang Director of Led and coordinated Hospital Coordinating communication among Center sites Moon-Ku Han, MD, PhD Seoul National University Bundang Site Coordinated Hospital Investigator communication for site Jihoon Kang, MD Seoul National University Bundang Site Coordinated Hospital Investigator communication for site Beon Joon Kim, MD, PhD Seoul National University Bundang Site Coordinated Hospital Investigator communication for site Keon-Joo Lee, MD Seoul National University Bundang Site Coordinated Hospital Investigator communication for site Min-Surk Kye Seoul National University Bundang Site Coordinated Hospital Investigator communication for site Dong Woo Shin Seoul National University Bundang Site Coordinated Hospital Investigator communication for site Byeolnim Ban Seoul National University Bundang Researcher Managed data Hospital Myung Suk Jang Seoul National University Bundang Researcher Managed data Hospital Seung Hee Lee Seoul National University Bundang Researcher Performed administrative Hospital work Ha-Eun Song Seoul National University Bundang Researcher Performed administrative Hospital work Jong-Moo Park, MD, PhD Eulji General Hospital Site Coordinated Investigator communication for site Kyusik Kang, MD, PhD Eulji General Hospital Site Coordinated Investigator communication for site Tae Hwan Park, MD, PhD Seoul Medical Center Site Coordinated Investigator communication for site Sang-Soon Park, MD, PhD Seoul Medical Center Site Coordinated Investigator communication for site Moo-Seok Park, MD Seoul Medical Center Site Coordinated Investigator communication for site Kyung Bok Lee, MD, PhD Soonchunhyang University Hospital Site Coordinated Investigator communication for site Jun Lee, MD, PhD Yeungnam University Hospital Site Coordinated Investigator communication for site DaEun Jeong Yeungnam University Hospital Site Coordinated Investigator communication for site Jee-Hyun Kwon, MD, PhD Ulsan University Hospital Site Coordinated Investigator communication for site Wook-Joo Kim, MD Ulsan University Hospital Site Coordinated Investigator communication for site Yong-Jin Cho, MD, PhD Inje University Ilsan Paik Hospital Site Coordinated Investigator communication for site Keun-Sik Hong, MD, PhD Inje University Ilsan Paik Hospital Site Coordinated Investigator communication for site Hong-Kyun Park, MD Inje University Ilsan Paik Hospital Site Coordinated Investigator communication for site Byung-Chul Lee, MD, PhD Hallym University Sacred Heart Hospital Site Coordinated Investigator communication for site Kyung-Ho Yu, MD, PhD Hallym University Sacred Heart Hospital Site Coordinated Investigator communication for site Mi-Sun Oh, MD, PhD Hallym University Sacred Heart Hospital Site Coordinated Investigator communication for site Jay Chol Choi, MD, PhD Jeju National University Hospital Site Coordinated Investigator communication for site Joon-Tae Kim, MD, PhD Chonnam National University Hospital Site Coordinated Investigator communication for site Kang-Ho Choi, MD, PhD Chonnam National University Hospital Site Coordinated Investigator communication for site Dong-Ick Shin, MD, PhD Chungbuk National University Hospital Site Coordinated Investigator communication for site Yum Kyu Sun Chungbuk National University Hospital Site Coordinated Investigator communication for site Sangkil Lee Chungbuk National University Hospital Site Coordinated Investigator communication for site Sung Il Sohn, MD, PhD Keimyung University Dongsan Medical Site Coordinated Center Investigator communication for site Jeong-Ho Hong, MD, PhD Keimyung University Dongsan Medical Site Coordinated Center Investigator communication for site Jae Hyuk Kwak Keimyung University Dongsan Medical Site Coordinated Center Investigator communication for site Hyungjong Park Keimyung University Dongsan Medical Site Coordinated Center Investigator communication for site Joonsang Yoo Keimyung University Dongsan Medical Site Coordinated Center Investigator communication for site Min Uk Jang Hallym University Dongtan Sacred Heart Site Coordinated Hospital Investigator communication for site Sang-Hwa Lee Hallym University Chuncheon Sacred Site Coordinated Heart Hospital Investigator communication for site .