1. Facultad de Ingeniería Electrónica y Biomédica–Research Group Complex Systems, Universidad Antonio Nariño, Bogota, Colombia
2. Division of Neurosurgery, Seton Brain and Spine Institute, Austin, TX, USA
3. Department of Neurology, Henry Ford Hospital and Wayne State University, Detroit, MI, USA
4. Department of Psychiatry, University of Missouri–Kansas City, Kansas City, USA