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如果大家的选择跟大纲设定不符，原野就改大纲。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.花明月是名副其实的名媛青春版“千颂伊”，甜美娇俏集万千宠爱于一身；秦东海曾任消防中队中队长，退役后留学英国并以优异的成绩学成归来入职花氏集团，外表高大有型、硬朗帅气，实则却是一个“少女心”十足的反差萌硬汉。二人不打不相识开启了一场斗智斗勇、相爱相杀的“养成系”恋爱故事。故事起源于一位寿数未尽的年轻企业家的灵魂...Poland 6.3 million million 7.3 million回去做工。客官这边请。