Shafi T, Sozio SM, Bandeen-Roche KJ, Ephraim PL, Luly JR, St Peter WL, McDermott A, Scialla JJ, Crews DC, Tangri N, Miskulin DC, Michels WM, Jaar BG, Herzog CA, Zager PG, Meyer KB, Wu AW, Boulware LE. Predialysis systolic BP variability and outcomes in hemodialysis patients. J Am Soc Nephrol. 2014 Apr; 25(4):799-809.