1 Department of Nehrology and Internal Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; 1st Nephrology Department, Dr Carol Davila Teaching Hospital of Nephrology, Bucharest, Romania. Electronic address: lilianagarna@yahoo.com.
2 Department of Internal Medicine, University of Genova, Italy.
3 Division of Nephrology, Dialysis and Transplantation, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
4 Department of Surgery, Houston Methodist Hospital, Houston, Texas.