Chief Physician, Professor, and Doctoral Supervisor. Specializes in clinical and basic research of allergic disorders, especially dust mite allergy, pollen allergy, anaphylaxis, and food allergy. He serves as a member of the Environment and Health Standards Committee of the National Health Commission, Director of the Chinese Research Hospital Association, Academic Leader of the State Key Laboratory of Complex Severe and Rare Diseases, and Academic Leader of the National Clinical Research Center for Immunological Diseases. He is also the Chairman of the Allergy Medicine Professional Committee of the Chinese Research Hospital Association, a consulting expert for the Center for Drug Evaluation of the National Medical Products Administration, a judge for the National Natural Science Foundation of China, and the Academic Leader of the Beijing Key Laboratory of Precision Diagnosis and Treatment of Allergic Diseases. Furthermore, he is the Deputy Leader of the Basic Research and Translational Medicine Group for Allergic Diseases of the Allergy Branch of the Chinese Medical Association, and an Editorial Board Member of the Chinese Journal of Allergy and Clinical Immunology.