Mr. Guo Gang, Associate Chief Physician, Medical Postgraduate, Director of No.2 Department of Rheumatism and Immunity, Director of Scleroderma Research Department, Member of Committee of Collateral Channel Diseases of China Association of Chinese Medicine (CACM), Member of Paralysis Specialty Committee of Hebei Association of Chinese Medicine. His expertise is in treatment of scleroderma, pulmonary interstitial fibrosis, polymyositis and peripheral angionosis. With more than 20 papers in provincial or national journals and 3 academic books (over 700 thousand characters) published already, he is currently responsible for three provincial scientific research projects, of which the experimental and clinical research on Shenzhe Zhuyun Mixture in treatment of esophagophathy caused by systemic scleroderma, as a project sponsored by Hebei Commission of Science and Technology, won the first prize of scientific and technological progress issued by Hebei Department of Health.