- Professor & Chair, Department of Dermatology, National Cheng Kung University
- Assistant Professor, Dermatology & Pathology, University of Pittsburg
- Fellowship, Dermatology, New York University
- Resident, Department of Pathology, University of Pittsburg and University of Maryland
- Attending, Department of Dermatology, Mackay Memorial Hospital
- Resident, Department of Dermatology, National Taiwan University