Ph.D. in Medical Engineering, National Yang-Ming University, (2009) Cancer Research Fellow, Graduate Division, University of California, Los Angeles, USA (2004) Bachelor's degree in Medicine, Taipei Medical University, (1985-1992) Professor, Department of Medicine, Taipei Medical University (From February 2021) Associate Professor, Department of Medicine, Taipei Medical University (2014-2021) Director of Radiation Oncology Department, Shuang Ho Hospital, Taipei Medical University (Since 2011) Adjunct Attending Physician, Department of Radiation Oncology, Taipei Medical University Hospital (Since 1998) Assistant Professor, Department of Medicine, Taipei Medical University (2008-2014) Director, Cancer Center, Taipei City Hospital Wanfang Branch (2005-2008) Committee Member, Intracranial Tumor Research Committee, National Health Research Institutes (2001-2003) Clinical Lecturer, Department of Radiology, Taipei Medical University (2001-2008) Executive Director, Cancer Quality Management Committee, Wanfang Medical Center (2000-2008) Director, Radiation Oncology Department, Wanfang Medical Center, Taipei City Hospital (1998-2011) Attending Physician, Radiation Oncology Department, Mackay Memorial Hospital (1996-1998) Chief Physician, Radiation Oncology Department, Taipei Mackay Memorial Hospital (1995-1996) Resident, Radiation Oncology Department, Taipei Mackay Memorial Hospital (1992-1995)