Extraction code: px7g? Huangdi Neijing is one of the most famous and oldest TCM classics in China, and it is also an all-encompassing and fantastic book. Unlike books of western medicine, it is always analyzing specialized words such as physiology and pathology, and it is also helping us to understand the mysterious wisdom in everyday things, such as things in the east, west, north, south, spring, summer, autumn and winter. ...