Results:The location of hemorrhage and amount of bleeding were related to the occurrence of cerebral hemorrhage and digestive tract hemorrhage.

结果：脑出血、消化道出血的发生率与出血部位、出血量有关。

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The smaller the particle size, the deeper the location of respiratory tract, and thus the greater the harm to humans, then the higher morbidity and mortality.

粒径越小，进入人体呼吸道的位置越深，因而对人体的危害越大，导致人们致病率和死亡率增加。

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