1 Heart Failure and Cardiac Transplant Unit, Cardiology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil2School of Nursing, Federal University of Rio Grande do Sul, Porto Alegre, Brazil3Postgraduate Program in Cardiology and Cardiovascul.
2 Heart Failure and Cardiac Transplant Unit, Cardiology Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil3Postgraduate Program in Cardiology and Cardiovascular Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.