A method and apparatus is provided, whereby the level of an intracellular analyte in a cell containing sample may be determined. The apparatus is comprised of a microscope with an X-Y stage, a video camera, a computer adapted to receive video images from the video camera, and a software program for controlling...http://www.google.com.au/patents/US5352613?utm_source=gb-gplus-sharePatent US5352613 - Cytological screening method
