BOUZAS L., HERMIDA J., and TUTOR J. C. “Sirolimus and Everolimus Clearance in Maintenance Kidney and Liver Transplant Recipients: Diagnostic Efficiency of the concentration/Dose Ratio for the Prediction of Trough Steady-State Concentrations”. Upsala Journal of Medical Sciences, vol. 115, no. 2, Nov. 2009, pp. 125–130, doi:10.3109/03009730903291026.