Medical Career: Zhang Guohua, M.D., Ph.D., Associate Professor at the Institute of Nephrology, Southern Medical University, and Associate Chief Physician in the Department of Nephrology, Nanfang Hospital. He has been engaged in clinical nephrology work for nearly 20 years. He specializes in the treatment of chronic kidney disease and chronic renal failure. He has also accumulated extensive experience in the treatment of nephrotic syndrome and lupus nephritis. Research Experience: As the first author, he has published over 10 papers in national-level journals, authored 3 monographs, and participated in multiple national, provincial, and ministerial research projects. He has received one National Science and Technology Progress Award (Second Class), one Military Science and Technology Progress Award (Second Class), and one Chinese Medical Science and Technology Award (First Class). Academic Appointments: Member of the Nephrology Branch of the Guangdong Medical Doctor Association.