A method for qualitative and quantitative determination of agglutination in immunoreactive systems, and for determining the concentration of the immunoreactive components of such system, which method comprises introducing a fluid biological test specimen and a reagent therefor (e.g., latex spheres) into...http://www.google.ca/patents/US4197088?utm_source=gb-gplus-sharePatent US4197088 - Method for qualitative and quantitative determination of immunological reactions
