title: Particle counting immunoassay (PACIA).
mesh_terms: D000936:Antigen-Antibody Complex / Q000032:analysis*; D000941:Antigens / Q000032:analysis*; D001798:Blood Proteins / Q000032:analysis; D006241:Haptens; D006801:Humans; D007118:Immunoassay; D007074:Immunoglobulin G; D007840:Latex; D007841:Latex Fixation Tests; D008027:Light; D012217:Rheumatoid Factor / Q000032:analysis*; D012542:Scattering, Radiation
chemical_list: D000936:Antigen-Antibody Complex; D000941:Antigens; D001798:Blood Proteins; D006241:Haptens; D007074:Immunoglobulin G; D007840:Latex; D012217:Rheumatoid Factor