目的选择皮下注射低分子肝素钠的最佳部位，以减少由于皮下注射低分子肝素钠所引起的不良反应。

Objective To reduce adverse reactions by way of selecting best hypodermic injection site of low molecular weight heparin sodium.

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And they also developed a very reliable way for introducing the virus, so that when they had a defined preparation of virus, then you want to make sure that everybody gets it in their skin in the right way.

他们还发明了一种可靠的方法来引入病毒,当人们有了确定的病毒制剂之后,就要要保证这些制剂都以正确的方式,注射至皮下

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