[1] Univ Milano Bicocca & ASST Monza, Dept Med & Surg, Monza, Italy
[2] Trinity Coll Dublin, Trinity Hlth Kidney Ctr, Dublin, Ireland
[3] Univ Brescia, Dept Med & Surg, Brescia, Italy
[4] Imperial Coll Healthcare NHS Trust, Hammersmith Hosp, Dept Renal Med, London, England
[5] Univ Milan, Div Renal, Dept Hlth Sci, ASST Santi Paolo & Carlo, Milan, Italy
[6] Dubrava Univ Hosp, Dept Nephrol & Dialysis, Zagreb, Croatia
[7] Karolinska Univ Hosp, Div Rheumatol, Dept Med Solna, Stockholm, Sweden
[8] Med Univ Innsbruck, Dept Internal Med Nephrol & Hypertens 4, Innsbruck, Austria
[9] Univ Firenze, Dept Expt & Clin Med, Florence, Italy
[10] Careggi Univ Hosp, Nephrol Dialysis & Transplantat Unit, Florence, Italy
[11] Univ Bologna, Diagnost & Specialty Med, Dialysis & Renal Transplant Unit, Bologna, Italy
[12] Linkoping Univ Hosp, Dept Hlth, Med & Caring Sci, Linkoping, Sweden
[13] Univ Cambridge, Dept Med, Cambridge, England
[14] Agram Special Hosp, Dept Nephrol & Dialysis, Zagreb, Croatia