title: Understanding the matrix effect in immunoassays.
authors.forename: Philip R
authors.initials: PR
authors.lastname: Oldfield
mesh_terms: D006801:Humans; D007118:Immunoassay / Q000379:methods / Q000592:standards*
keywords: anti-drug antibodies; critical reagents; heterophilic antibodies; immunoassays; matrix effects; soluble receptors