Previous Article Next Article Table of Contents Science, Vol.274, No.5292, 1548-1549, 1996 DOI10.1126/science.274.5292.1548 Export Citation Genetic Data and the African Origin of Humans - Reply Risch N, Kidd KK, Tishkoff SA Keywords:ALLELIC GENEALOGY Please enable JavaScript to view the comments powered by Disqus.