NCIt definition : An immunoassay method that involves the binding of antibodies to radiolabeled antigen,
precipitation of the antibody/antigen complex using a special reagent, and analysis
of the precipitate, usually by gel electrophoresis.;
Alternative definition : CDISC: An immunoassay method that involves the binding of antibodies to radiolabeled
antigen, precipitation of the antibody/antigen complex using a special reagent, and
analysis of the precipitate.;