title: Comparing laboratory tests using the difference plot method.
authors.affiliation: Central Laboratory, Department of Clinical Studies, The Royal Veterinary and Agricultural University, Bülowsvej 13, DK-1870 Frederiksberg C, Denmark.
authors.forename: Asger Lundorff
authors.initials: AL
authors.lastname: Jensen
authors.forename: Mogens
authors.initials: M
authors.lastname: Bantz