Yang Lin, chief physician, professor, Doctor of Medicinae, master’s tutor, he is a member of Nephropathy Branch of Hebei Medical Aassociation. He has engaged in clinical, teaching and scientific research work of nephrology for 29 years, he is proficient in the diagnosis and treatment of common diseases, frequently-occurring diseases and difficult diseases in nephrology. He is Proficient in kidney biopsy and its pathological technology. The quality of biopsy is first-class in China. Over the past decade, He has read 13,000 pathological biopsy slices of kidney and published 3 related books. He has published more than 50 papers and won 3 provincial science and technology achievement awards.