1. Department of Palliative Care, Hospital de Apoio de Brasília, Brasília, Brazil.
2. Department of Neurology, Tertiary Referral Center of Neuromuscular Diseases, Hospital de Apoio de Brasília, Brasília, Brazil.
3. Graduate Department of Health Sciences and Technologies, University of Brasília, Brasília, Brazil.
4. Palliative Care Program, Division of General Internal Medicine, Johns Hopkins Bayview Medical Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.