– Associate Professor and Director of Department of Hematological Oncology of National Taiwan University Cancer Center, Taiwan

– Attending Physician of Department of Internal Medicine of National Taiwan University Hospital, Taiwan

– Director of Tai-Cheng Cell Therapy Center of National Taiwan University, Taiwan

– President of Hematology Society of Taiwan (HST), Taiwan

– Executive Director and Ex-President, Taiwan Society of Pharmaco-economics and Outcome Research (TaSPOR) / International Society of Pharmaco-economics and Outcome Research (ISPOR)-Taiwan Chapter, Taiwan

– President of TaSPOR and ISPOR-Taiwan Chapter, Taiwan (2018~2023)

– President of the Taiwan Society of Blood and Marrow Transplantation (TBMT), Taiwan (2019~2022)

– the position of Secretary-General of the Taiwan Society of Blood and Marrow Transplantation (TBMT), Taiwan (2013~2019)

– Investigator at the National Health Research Institute, Taiwan (2010~2014)

– A Visiting Research Scholar at The University of Texas Health Science Center in Houston and the Department of Stem Cell Transplantation and Cellular Therapy at MD Anderson Cancer Center of the University of Texas, USA (2006~2007)