1. Department of Biology, Biology/Psychology Building, University of Maryland, College Park, MD 20742, USA.
2. Institute of Evolutionary Genetics, Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.
3. Faculty of Medicine and Pasteur Institute, Tunis, Tunisia.
4. Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA 70808, USA.
5. Department of Human and Animal Biology, University “La Sapienza,” Rome, Italy.
6. Department of Biochemical Genetics, The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus.
7. Department of Human Genetics, South African Institute of Medical Research, University of the Witwatersrand, Johannesburg, South Africa.
8. University of Sciences and CNRS, Montpellier, France.
9. University St. Joseph, Beirut, Lebanon.
10. Istituto di Medicina Sperimentale e Biotecnologie–CNR, Mangone (Cosenza), Italy.
11. Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
12. Department of Microbiology, Meharry Medical College, Nashville, TN 37208, USA.