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Abstract Since hyaluronic acid was first discovered and prepared in 1934, it has been widely applied based on longtime investigation and exploitation. At present, basic research has indicated that physiological functions of hyaluronic acid include the physical mechanical functionsof macro molecule network structure and viscoelasticity. Moreover, it can regularize cell by combining with receptor, and plays an important role in many physiological activities. Hyaluronic acid preparations with different use purposes have been widely used in all aspects of medicine and life.
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