To establish an objective animal model for experimental study of bone nonunion.
为骨不连的实验研究建立一种客观的动物实验模型。
Objective To make an animal experimental study on antibechic and expectorant action of NORPIN-A.
目的：对NORPIN -A的镇咳、祛痰作用进行动物实验研究。
Objective To make an animal experimental study on antibechic and expectorant action of NORPIN-A.
目的：对NORPIN -A的镇咳、祛痰作用进行动物实验研究。
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