Colleague relations. Qi Lin, male, first-level chief physician, professor, doctoral supervisor, MD, postdoctoral fellow in the United States, nationally renowned urology expert, director of urology surgery at Xiangya Hospital, academic leader in national key clinical disciplines, Qi Fan, male, professor , graduated from the Seventh Military Medical University of the Chinese People's Liberation Army in 1968, and served as the director of the Department of Urology and the deputy director of the Organ Transplantation Center of Xiangya Hospital in 1992. Qi Lin and Qi Fan are just colleagues of the same gender but different names. Medical discussion.