VOA标准英语2008年-Researchers Say Umbilical Cord Blood Is Needed
时间：2008-05-24 01:10:24
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By Robert Raffaele
Washington
06 May 2008
Medical researchers say a simple decision by expectant mothers can mean the difference between life and death for thousands of people. Blood from umbilical cords has been used in life-saving transplants for people suffering from diseases such as leukemia. But cord blood is in short supply. VOA's Robert Raffaele has the story.
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