Acknowledgements

We are grateful to the support of the Fogarty International Center and the helpful comments of Drs. Paul Reiter, Oliver Brady, Ellis Mackenzie, Joshua Rosenthal, Gerardo Ulibarri, Yifen Liu and Prof. Chwan-Chuen King. The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the U.S. National Institutes of Health, Department of Health and Human Services, Department of Genetics and Evolutionary Biology or University of São Paulo.
