title: Negative interference in immunoassays.
authors.forename: J
authors.initials: J
authors.lastname: Butler
mesh_terms: D003165:Complement System Proteins; D005188:False Negative Reactions; D006801:Humans; D015592:Immunoradiometric Assay; D011933:Reagent Kits, Diagnostic; D013972:Thyrotropin / Q000097:blood*
chemical_list: D011933:Reagent Kits, Diagnostic; D013972:Thyrotropin; D003165:Complement System Proteins