Catholic University of Korea, The Catholic University of Korea - Department of Internal Medicine, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Yonsei University - Severance Hospital, affiliation not provided to SSRN, affiliation not provided to SSRN, Chungbuk National University - College of Medicine, affiliation not provided to SSRN, Pusan National University - Pusan National University Hospital, affiliation not provided to SSRN, affiliation not provided to SSRN, Daegu Catholic University Hospital, affiliation not provided to SSRN, affiliation not provided to SSRN, Inje University - Ilsan Paik Hospital, affiliation not provided to SSRN and affiliation not provided to SSRN