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Automated quality control for the haematology laboratory
  1. I. Cavill,
  2. C. Ricketts
  1. Department of Haematology, University Hospital of Wales, Cardiff


    Two simple methods of using sophisticated statistical techniques to analyse intralaboratory quality control data are described. One method uses a plastic grid to assess the cumulative sum (cusum) graph. An equivalent procedure, which may be carried out by a laboratory computer, gives automated on-line quality control of the Coulter S blood counter. The possible development of simple apparatus to carry out the same function is discussed.

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