Karagiannis SE, Feringa HHH, Elhendy A, van Domburg R, Chonchol M, Vidakovic R, Bax JJ, Karatasakis G, Athanasopoulos G, Cokkinos DV, et al. Prognostic significance of renal function in patients undergoing dobutamine stress echocardiography. Nephrology Dialysis Transplantation. 2007;23:601–607.