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Eisenberger, Ute; Sollinger, Daniel; Stickel, Felix; Burckhardt, Beat; Frey, Felix J (2009). Relationship between renal resistance index and renal function in liver transplant recipients after cessation of calcineurin inhibitor. Clinical transplantation, 23(4), pp. 499-504. Oxford: Wiley-Blackwell 10.1111/j.1399-0012.2009.00986.x
