1. Division of Geriatric Neurology, Service of Neurology, “Hospital de Clínicas de Porto Alegre” (HCPA), Ramiro Barcelos Street 2.350, 90035-903 Porto Alegre, RS, Brazil
2. Department of Internal Medicine, “Universidade Federal do Rio Grande do Sul” (UFRGS), Ramiro Barcelos Street 2.350, 90035-903 Porto Alegre, RS, Brazil
3. Division of Gerontological Nursing, Faculty of Nursing, Universidade Federal do Rio Grande do Sul (UFRGS), São Manoel Street 963, 90620-110 Porto Alegre, RS, Brazil