7/1/1986-6/30/1989 - Resident, Chang Gung Memorial Hospital 7/1/1989-6/30/1991 - Fellow, Chang Gung Memorial Hospital 7/1/1991-present - Attending Cardiologist, Chang Gung Memorial Hospital 7/1/1996-06/30/2015 - Associate professor, Chang Gung Memorial Hospital 7/1/2015-present - Professor, Chang Gung Memorial Hospital 3/1/2013-6/30/2017 - Director for Division of Cardiology, Chang Gung Memorial Hospital 7/1/2017-present - Vice Superintendent, Chang Gung Memorial Hospital