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综述了超氧化物歧化酶、透明质酸、壳多糖及其衍生物、胸腺激素和低分子肝素作为药物研究的进展，并讨论其研究开发方向。
The advances of superoxide dismutase, hyaluronic acid, chitin and their derivatives, thymus hormones and low molecular weight heparin as drugs were reviewed, and their research and development directions were discussed.