Miskulin DC, Zhou J, Tangri N, Bandeen-Roche K, Cook C, Ephraim PL, Crews DC, Scialla JJ, Sozio SM, Shafi T, Jaar BG, Boulware LE. Trends in anemia management in US hemodialysis patients 2004-2010. BMC Nephrol. 2013 Dec 01; 14:264.