• Visiting staff, Pulmonary medicine division
• Assistant Professor, School of Medicine, National Yang Ming Chiao Tung University

• Asthma, Chronic obstructive pulmonary disease, pneumonia, Mycobacteria infection and lung cancer

• Medicine, Medical college, National Taiwan University

• Resident, Internal medicine, National Taiwan University Hospital
• Fellow, Pulmonary division, National Taiwan University Hospital
• Visiting staff, pulmonary division