Affiliation: | a Division of Cardiovascular Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan b School of Graduate Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan c School of Post-baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan d Division of Cardiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan |