Luis Huicho1*
, Guoqiang Xing2*
, Clifford Qualls3
, María Rivera-Ch4
, Jorge L Gamboa5
, Ajay Verma6
and Otto Appenzeller7 
1
Departament of Paediatrics, Universidad Nacional Mayor de San Marcos, Universidad Peruana Cayetano Heredia, and Instituto de Salud del Niño, Lima, Peru
2
Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda MD, USA
3
University of New Mexico, Department of Mathematics and Statistics and Clinical Research Center, University of New Mexico School of Medicine, Albuquerque NM 887131, USA
4
Departament of Biological and Physiological Sciences, Faculty of Sciences and Philosophy, High Altitude Research Institute, Universidad Peruana Cayetano Heredia, Lima, Peru
5
Department of Physiology, University of Kentucky, Lexington, Kentucky, USA
6
Department of Neurology, Uniformed Services University of the Health Sciences, Bethesda MD, USA
7
Department of Neurology, New Mexico Health Enhancement and Marathon Clinics Research Foundation, Albuquerque NM, USA