Fellow of the Royal College of Physicians (FRCP), Doctor of Medicine from King's College London, Visiting Professor at Harvard Medical School, Professor at Flinders University in Australia, Distinguished Sleep Physician in China, Specialist Respiratory Physician in Australia, and Expert entitled to Special Government Allowance from the State Council. He is a member of the expert panel for the development of respiratory disease diagnosis and treatment guidelines in Europe and the United States.

Diagnosis and treatment of complex respiratory system diseases include unexplained dyspnea, refractory cough, sleep-related breathing disorders, diffuse lung diseases, chronic obstructive pulmonary disease (COPD), bronchiectasis, asthma, pulmonary infections, and diaphragmatic dysfunction.