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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.老嬷嬷见她沉静的眸子忽然深暗下去。尹旭做事向来滴水不漏，今日冒险渡淮水而来，想必是有什么目的的。　　本剧的主人公袁佑宁原本生活在一个幸福的家庭里，从小的理想是成为像父亲一样优秀的医生。1976年7月28日，佑宁十三岁，突如其来的唐山大地震，把一切都改变了。都死了。It can be said that all kinds of strange and strange types are included.另一方面，王小虎欲与王小龙相认，求助于马坤爱女马小灵，马小灵早已对王小虎心存好感，于是仗义相助，惜王小龙一时间未能接受王小虎。罗刹女围剿马家，马坤被杀，王小龙带着马小灵杀出重围，负伤去到龙虎门武馆。