1 Department of Neuroscience, The James Black Centre, King's College London, 125 Coldharbour Lane, London SE5 8AF, UK.
2 Quality of Care and Translational Medicine, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, 09042 Monserrato, Italy.
3 Unidad de Trastornos del Movimiento y Sueño, Hospital General Dr. Manuel Gea González, 14080 Ciudad de México, DF, Mexico.
4 Laboratory of Panic & Respiration, Institute of Psychiatry, Federal University of Rio de Janeiro, 22410-003 Rio de Janeiro, RJ, Brazil.