1) Nehrology Clinic: Obesity and renal diseases, glomerular pathology, lupus nephritis, ANCA vasculitis, complement and glomerular disease, malignant hypertension, hyperkalemia. 

2) Hemodialysis: Nutritional intervention in chronic renal failure, management phospho-calcium metabolism. 

3) Renal Transplantation: renal transplantation in elderly patients, non heart-beating donors, immunosuppressive treatment.

1. Reviewer: Nephrology Dialisys Transplantation, American Journal of Kidney Diseases, Obesity Reviews, Nefrología, Frontiers.
2. Editor: Frontiers in Nephrology, Journal of Clinical Medicine.
3. Main investigator or co-investigator in more than 50 clinical trials.
4. Scientific societies: Madrid Society Nephrology, Madrid Society of Transplantation, Spanish Society of Nephrology, European Society of Nephrology, American Society of Nephrology.