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Immunoassays: a roadmap for the 1980s.

The use of immunoassay has greatly expanded the capability of the clinical laboratory. This paper describes the basic principles behind immunoassay as well as a number of specific applications of those principles. Radioimmunoassay, enzyme immunoassay, fluorescent immunoassay, chemiluminescence, and nephelometry are some of the subjects discussed. The discussion of fundamental principles forms a basis for exploration of the future of immunoassay.