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Thromboembolic diseases are currently one of the causes that endanger human health and lead to the highest mortality rate, such as myocardial infarction, cerebral thrombosis, deep vein thrombosis, cerebral embolism, pulmonary embolism, etc. In addition, thrombosis is an important pathological process involved in the pathogenesis of many diseases. 1. Anticoagulant therapy (1) Heparin: Heparin is a commonly used anticoagulant and is a highly sulfated glucosaminoglycan. Heparin is widely found in mammalian tissues, and mast cells are the main producing sites. The main sources of medicinal heparin are bovine lung and pig intestinal mucosa. Heparin used clinically is called unfraction heparin (UFH) because it is a mixture of components with different relative molecular weights. The relative molecular weight is between 33,000 and 30,000, which is also called standard heparin (SH). The drug name is heparin sodium. (2) Low molecular weight heparin: crude heparin is cracked into some fraction with relative molecular mass of 1000 ~ 12000 by chemical or enzymatic hydrolysis methods, and then purified. There are at least 10 kinds of low molecular weight heparin prepared by different manufacturers and different methods.HKLMSYSTEMCurrentControlSetServicesTcpipParameters电视剧《我爱你想杀你》拍摄现场被卷入的事件所玩弄的东洋电视台电视剧部的悲喜交织在一起，禁断的幕后！11凶手后悔小原久美子晓美终于意识到，她和朋友们似乎被某人封在了魔女的结界中。无休止的轮回以及爱欲滋生的幻象，让少女们陷入无休止的混乱深渊……(2) A hard replica of the international signal flag "A", the height of which shall not be less than 1 meter, and measures shall be taken to ensure that it can be seen around.剧情讲述两对俊男美女兜兜转转的曲折爱情故事