Yu, male. Chief physician, professor and doctoral supervisor. 65438-0995, Ph.D., Department of Cardiothoracic Surgery, Xiangya Medical College. He is currently the director of general thoracic surgery in the Second Xiangya Hospital of Central South University and the director of the General Thoracic Surgery Disease Research Office in Hunan Province. He is also a member of the Standing Committee of Thoracic Surgery Branch of Chinese Medical Doctor Association and the Chairman of the Professional Committee of Thoracic Surgery of Hunan Medical Association.

Zhang Chunfang, male, chief physician, is currently a professor, deputy director and doctoral supervisor of cardiothoracic surgery in Xiangya Hospital of Central South University. Born in April, 1965, Han nationality, party member, native of Qiyang County, Hunan Province, doctor of surgery, postdoctoral fellow in oncology, etc.