1. Postgraduate Program of Neuroscience, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG,
2. Neuromuscular Disease Centre, Department of Neurology, University Hospital, Belo Horizonte, MG, and
3. Pneumology Department, Júlia Kubitschek Hospital, FHEMIG, Belo Horizonte, MG, Brazil