Has long been engaged in the clinical diagnosis, treatment and research of digestive system diseases, with extensive clinical experience particularly in inflammatory bowel disease, Helicobacter pylori infection and gastrointestinal motility disorders.

Diagnosis and treatment of respiratory diseases such as chronic cough, asthma, bronchiectasis and chronic obstructive pulmonary disease; diagnosis and treatment of rare and complex respiratory diseases such as refractory asthma and diffuse interstitial lung disease; diagnosis and treatment of pulmonary nodules and lung cancer; treatment and rehabilitation of critical respiratory illnesses; and complex interventional pulmonology techniques, such as interventional treatment of benign and malignant tracheobronchial stenosis and fistulas.

Has long been engaged in clinical cardiology, with comprehensive skills and experience in managing common cardiovascular conditions and acute, critical and severe illnesses. Has performed more than 4,000 cardiac interventional procedures of various types, including more than 500 high-risk complex procedures. Was a visiting scholar at the cardiac catheterization laboratory of the Heart Center, UC Davis Medical Center, USA. Specializes in pacemaker implantation of various types (including single- and dual-chamber pacemakers, implantable cardioverter-defibrillators, cardiac resynchronization therapy (three-chamber) pacemakers for heart failure and conduction system pacing) and interventional treatment of coronary heart disease and other conditions.

Has extensive clinical experience in the diagnosis and treatment of coronary heart disease, hypertension, congenital heart disease, valvular heart disease and heart failure, with in-depth expertise in managing complex coronary lesions and critically ill patients, and extensive experience in intravascular imaging, functional assessment and coronary calcification modification techniques. Proficient in interventional treatment of common congenital heart diseases, and performs patent foramen ovale closure. Was engaged in pacemaker implantation in earlier years, and is familiar with newer technologies such as artificial hearts, ECMO and heart valve implantation.

Has long been engaged in clinical work and research on cardiovascular diseases, with extensive experience in diagnosing and treating common conditions such as coronary heart disease, hypertension, cardiomyopathy, valvular heart disease, arrhythmia and heart failure. Specializes in the management of acute and critical conditions such as acute coronary syndrome, malignant arrhythmia, refractory heart failure and resistant hypertension. Has worked in cardiac interventional diagnosis and treatment since 1998 and has performed nearly 10,000 interventional procedures of various types, with considerable clinical experience in interventional cardiology (coronary intervention).

Diagnosis, treatment (including intravenous and intra-arterial thrombolysis, mechanical thrombectomy and endovascular intervention for acute cerebrovascular disease) and prevention of cerebrovascular diseases, with in-depth expertise in diagnosing and treating common and complex neurological conditions such as dizziness, epilepsy, hereditary neurological disorders, intracranial infections and peripheral neuropathy.

Specializes in the management of pancreatic diseases such as pancreatitis, gastrointestinal mucosal injury, functional gastrointestinal disorders, liver cirrhosis, digestive system tumors and other conditions.

Gastrointestinal polyps, gastrointestinal submucosal tumors, early gastrointestinal cancer, gastrointestinal bleeding, internal hemorrhoids, stenosis or obstruction of the digestive tract or the biliary and pancreatic ducts, achalasia, common bile duct stones and pancreatic pseudocysts.

Diagnosis and treatment of diabetic foot; management of refractory hyperthyroidism; and postoperative treatment of thyroid cancer.

Kidney diseases such as nephrotic syndrome, membranous nephropathy, IgA nephropathy, lupus nephritis, vasculitis-associated kidney injury, Sjögrens syndrome-associated kidney injury, acute kidney injury and chronic kidney disease, as well as nephrology procedures such as dialysis vascular access, parathyroid surgery for hyperparathyroidism in uremia and kidney transplantation.