1. Nephrology, Hospital de Faro, Rua Leão Penedo, 8000-386 Faro, Portugal
2. Fresenius Medical Care Deutschland GmbH, 61352 Bad Homburg, Germany
3. Pathology Clinic, Hospital de Faro, 8000-386 Faro, Portugal
4. Cardiology, Hospital de Faro, 8000-386 Faro, Portugal
5. Pharmacology, Gnostic Laboratory, 8000-386 Faro, Portugal