摘要
Zhang Yuansu(courtesy name Zhang Jiegu)was from Yi County,Hebei province.At the old age,he called himself“Yishui old man”.He was a famous medical scholar in the Jin and Yuan dynasties and the founder of the“Yishui school”.He was the author of the Origins of Medicine(Yi Xue Qi Yuan),Medicinals for Zang-fu Organ Disorders(Jie Gu Jia Zhen)and Pouch of Pearls(Zhen Zhu Nang).
