[ and g compiled in the Western Zhou].

There are 18 volumes of (, ) and 37 volumes of in . Base on Huangfu Mi's preface to (, ), "Now there are and that are ", and researchers think has been lost for a long time. However, the study of historical records shows that with the gradual loss of records in and , the inheritance of and has become increasingly clear. From the bibliography of of , and were undoubtedly two books. According to the development process of ancient Chinese society, the medical system of Zhou Dynasty, the achievements of Yiyin medicine, and the evolution of doctors' Appellations of "Wu"(Wizard), "Gong"(craftsman) and "Yi"(physician), this paper thinks that and can only be written in the Western Zhou Dynasty, while the state power was highly concentrated, not in the Warring States period. was probably written in response to the needs of "disease medicine" and "food medicine" of the Zhou Dynasty. Its inheriting writing is the current edition of plain questions, covering the major internal medicine system; is likely to be written in response to the needs of " skin and external diseases medicine" of Zhou Dynasty, and its inheriting writing is the current version of (), covering the general anatomy of the human body, acupuncture, sores, massage, guidance, etc., quite the grand surgical system.