1. The Center for Structural and Functional Neurosciences, The University of Montana, Missoula, MT, USA
2. Escuela de Ciencias de la Salud, Universidad del Valle de México, Campus Saltillo, Saltillo, Coahuila, México
3. Instituto Nacional de Pediatría, Mexico City, México
4. Centro Médico Cozumel, Cozumel, Quintana Roo, México
5. Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico
6. Department of Psychiatry and Computer Science, University of North Carolina, Chapel Hill, NC, USA
7. Mathematics Department, Boise State University, Boise, ID, USA
8. Neuroradiology, University of North Carolina School of Medicine, Chapel Hill, NC, USA