1. School of Nursing, Nutrition and Phisioterapy/PUCRS; Pontífícia Universidade Católica do Rio Grande do Sul (PUCRS); Porto Alegre Rio Grande do Sul Brazil
2. School of Nursing, Nutrition and Phisioterapy/PUCRS; PUCRS; Porto Alegre Rio Grande do Sul Brazil
3. School of Nursing/Universidade Federal de Santa Maria; Santa Maria Rio Grande do Sul Brazil
4. Medical School; PUCRS and Post Graduation Program in Medicine and Health Science (Nephrology); FAMED/Instituto de Pesquisas Biomédicas/PUCRS; Porto Alegre Rio Grande do Sul Brazil
5. Medical School; PUCRS and Post Graduation Program in Medicine and Health Science (Nephrology); FAMED/Instituto de Pesquisas Biomédicas/Hospital São Lucas/PUCRS; Porto Alegre Rio Grande do Sul Brazil