[Distribution of Xin'an TCM physicians and their medical works and the reasons of its formation of medical center].

Based on the living times, native places and medical works of Xin'an TCM physicians described in the Xin an ming yi kao ( Textual Research of Famous Physicians of Xin ' an Region ), the geographical distribution of ancient TCM physicians was analyzed by using Excel software. It is found that Xin'an medicine was originated from the Eastern Jin Dynasty and highly developed in the Qing Dynasty, and the number of its TCM physicians in the Ming and Qing Dynasties was large than the summation of those from the Eastern Jin Dynasty to the Ming Dynasty. In regard to the district, the distribution of Xin'an TCM physicians was characterized by more in the southeastern and less in the northwestern parts, forming a distribution area concentrated in the three counties of Shexian, Wuyuan and Xiuning. The reasons of such concentration of Xin'an TCM physicians are closely related to the economic growth, the influence of Neo-Confucianism and the density of population.