1. Nephrology and Renal Transplantation Department, Centro Hospitalar Lisboa Norte, Lisbon, Portugal
2. Nephrology Department, Hospital Garcia de Orta, Almada, Portugal
3. NOVA Medical School, Lisbon, Portugal
4. Neurology Department, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal
5. Department of Endocrinology, Diabetes and Metabolism, Centro Hospitalar de São João, Porto, Portugal
6. Department of Surgery and Physiology, Cardiovascular Research Center, Faculty of Medicine, University of Porto, Porto, Portugal