An analysis system for analyzing biological samples, such as body fluids, methods implemented by the analysis system, and a computer program product for implementing the analysis system are disclosed. Instruments and methods are also provided for use with the graft retaining implant. The number of IR filters is larger than that of G filters, and the number of G filters is larger than that of R filters or B filters. The cell includes a charge storage layer disposed above the bottom oxide layer, a dielectric tunneling layer disposed above the charge storage layer and a control gate formed above the dielectric tunneling layer.