BOUZAS L., HERMIDA J., and TUTOR J. C. “Determination of Blood Sirolimus Concentrations in Liver and Kidney Transplant Recipients Using the Innofluor® Fluorescence Polarization Immunoassay: Comparison With the Microparticle Enzyme Immunoassay and High-Performance Liquid Chromatography-Ultraviol”. Upsala Journal of Medical Sciences, vol. 114, no. 1, July 2009, pp. 55-61, doi:10.1080/03009730802608254.