1. Nephrology Department, Hospital Prof. Dr. Fernando Fonseca, Amadora, Portugal
2. Kidney Transplant Unit, Nephrology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
3. Gastroenterology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
4. Pharmacology and Neurosciences Department, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal