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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.外面风大，受了寒不是玩的。In addition, it still has doubts about the online learning content and learning effect of thinking ability training, and because it is directly facing the national market, the accuracy of obtaining customers is relatively low.The hotel's west wing guest room building has about six floors, with elevators, and is arranged on the fifth floor. The booked double-bed room was originally planned to have a 2.4-meter-wide queen bed, which is very considerate!他还是忍不住笑了起来。If CSO's of major banks in the country are asked about distributed denial of service attacks (DDoS) they have encountered in recent months, they will certainly keep their mouths shut. Yes, silence is the first choice for security personnel.这是上个世纪二十年代末至上海解放前夕，发生在上海滩棚户区里“一家人”的故事出身在贫苦家庭的小若男跟随父亲由乡间来到上海谋生，父亲通过别人的介绍，做了一名车夫，拼命挣钱供若男读书。然而好景不长，父亲在一次拉客过程中被流氓毒打，后来终因劳累过度，离开了年仅六岁的小若男。孤苦伶仃的若男被好心的阿祥妈妈巧珍收养，成为这个家庭的一员。渐渐长大的若男勤劳、善良、聪慧，在阿祥妈和私塾老师童先生的呵护和帮助下，她如饥似渴的获取知识，拼命学习掌握谋生的本领，以超人的毅力和韧劲，接受生活的挑战。可是命运却在毫不留情的磨练着小若男。在贫苦的生活里，她竭尽全力支撑这个家。她得到棚户区一起长大的小伙伴们和好心人的热心帮助，从裁缝店的学徒干起，白手起家，创建了自己的事业。由于时局的动荡，她的事业几起几落，历经坎坷，艰难地向成功迈进……