VOA标准英语2008年-Researchers Say Umbilical Cord Blood Is Needed

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.