Yang Juan is an old professor at Tong Ren Tang. According to the inquiry, Yang Juan is a special expert of Beijing Tongrentang Hospital of Traditional Chinese Medicine and the chief physician and professor of Beijing Chaoyang Hospital. Well-known expert in internal medicine of traditional Chinese medicine, national famous old Chinese medicine practitioner. Born in a family of traditional Chinese medicine, he was taught by his family since childhood, diligent in learning and proficient in Zhongjing.