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Questions for Discussion: Stem Cells: Seeds of Hope?

What does Dr Snyder mean when he says stem cells are "flexible and plastic?"

In this video what evidence convinces you that stem cells can be used to cure spinal cord injury?

Dr Snyder points out that there are ethical concerns, and that there is no single answer that will please everyone. Who do you think should be the ones to decide where to obtain stem cells for medical research?