Dr. Liangjun Wang, lead expert, professor, director of the business, domestic famous expert of chest surgery, has been engaging in oncosurgery of the chest for more than 40 years. He has studied under the indoctrination of well-known professors at home and abroad, such as Guojun Huang, Dawei Zhang, Skinnet and Nabeya. He excels in oncosurgery of the chest, and has abundant diagnosis and treatment experiences especially in esophageal carcinoma, carcinoma of gastric cardia, lung cancer, mediastinal mass, etc. He has stronger capabilities in scientific innovation and teaching. Besides, he also has capability of reading chest X-ray film. He was appraised for his academic reports in the 4^th World Conference of Disease of Esophagus. He has been awarded by Ministry of Health and China Academy of Medical Sciences for achievements in scientific research for many times. He has cultured many postgraduates and doctors, published many theses, and compiled in many monographs.