title: Point: legitimate and illegitimate tests of free-analyte assay function.
authors.affiliation: North Lakes Clinical, West Yorkshire, United Kingdom, Immunoassay consultant, Cardiff, Wales. je.midgley@virgin.net
authors.forename: John E M
authors.initials: JE
authors.lastname: Midgley
authors.forename: Nic D
authors.initials: ND
authors.lastname: Christofides
mesh_terms: D019963:Clinical Chemistry Tests / Q000379:methods* / Q000592:standards; D006801:Humans; D007086:Illegitimacy; D013677:Medical Laboratory Science; D015203:Reproducibility of Results