Abstract
A NORDKEM working group consisting of two clinicians (Mogens Christensen and Jens Møller-Petersen) and three clinical chemists (Per Hyltoft Petersen, Per Winkel and myself) have recently completed a monograph with the above title published by NORDKEM in the Scandinavian Journal of Clinical and Laboratory Investigation vol. 52, suppl. 208, 1992. A brief summary is provided below with particular emphasis on specifications of relevance to the clinical use of tests.