1. Department of Nephrology, Dialysis and Transplantation, International Renal Research Institute of Vicenza (IRRIV), San Bortolo Hospital, Vicenza, Italy
2. Dr. Nayak Dialysis Centres Private Limited, Somajiguda, Hyderabad, Telangana, India
3. Servicio de Nefrología, Complejo Asistencial Universitario de León, León, Spain