Jinrui YangProf. Yang is the Vice Director of the Department of Urology at the Second Xiangya Hospital of Central South University. He has practiced medicine for 40 years and specializes in endourology. He has completed over 4,000 endourological surgeries and hs conducted scrotoscopic surgery for the treatment of scrotal diseases since 1990. He is the originator of the systematic theory and techniques for scrotoscopic surgery. Read More Read Less