1. Hypnos Instituto del Sueño, Clínica San Felipe, Lima, Perú
2. Universidad Peruana Cayetano Heredia, Facultad de Medicina, Lima, Perú
3. Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology, University of Cincinnati, Cincinnati, Ohio
4. Department of Neurology, Emory University, Atlanta, Georgia