Affiliation: | (1) The Heart Institute, National University Hospital, 5 Lower Kent Ridge Road, Singapore, 119074, Singapore;(2) PSHC, King Fahd Medical City, P.O. Box 59046, Riyad, 11525, Kingdom of Saudi Arabia;(3) PSHC Cardiac Surgery Department, King Fahd Medical City, P.O. Box 59046, Riyadh, 11525, Kingdom of Saudi Arabia |