物;In these unsterilized centers, blood was often collected from several people at the same time and mixed together in a container where the plasma was removed.
这些人还记得过去一次商业性卖血
。
In these unsterilized centers, blood was often collected from several people at the same time and mixed together in a container where the plasma was removed.
这些人还记得过去一次商业性卖血。
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