Shop Print Media, No drawers, 92% Polyester / 8% Spandex, Submucosal Lifting Agent, 1 X 5 ml, For the Calibration of the Alinity i Analyzers when used for the Quantitative Determination of Total Prostate Specific Antigen (both Free PSA and PSA Complexed to Alpha-1-antichymotrypsin) in Human Serum