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Creator Hess Photographic Remove constraint Creator: Hess Photographic Subject Medical laboratory technology Remove constraint Subject: Medical laboratory technology

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    • 1973 – 1982

    Beckman's Biogamma Radioimmuno Analyzer was introduced in 1973. Radioimmunoassay (RIA) is a technique for measuring the antigen concentration. Known quantities of radioactive (labeled or “hot”) antigens and antibodies…