MD, Master's Supervisor, Senior Associate Chief Physician at Ruijin Hospital, National Committeeman of multiple academic committees in the fields of lung cancer and respiratory endoscopic intervention, Editorial Board Member and Reviewer for multiple medical journals. Visiting Scholar at the National Institutes of Health (NIH), USA; Visiting Scholar at the Endoscopy Center of Johns Hopkins University Hospital, USA. With over 25 years of clinical experience, possessing extensive expertise in respiratory clinical diagnosis and treatment. Main subspecialties include: 1. Diagnosis and individualized treatment of lung cancer (targeted therapy, immunotherapy, chemotherapy, anti-angiogenic therapy, etc.). 2. Diagnosis and differential diagnosis of pulmonary shadows, especially small nodules. 3. Diagnosis and treatment of chronic cough and chronic airway diseases. 4. Interventional diagnostic techniques of respiratory endoscopy.