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Dr. Xie Xiaodong, Professor of Genetics at Lanzhou University in his lab. Dr Xie has conducted tests on the DNA of people in Liqian village to determine where  they have come from.
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Dr. Xie Xiaodong, Professor of Genetics at Lanzhou University in his lab. Dr Xie has conducted tests on the DNA of people in Liqian village to determine where they have come from.