Measurement of dehydroepiandrosterone sulphate (DHEAS): A comparison of Isotope-Dilution Liquid Chromatography Tandem Mass Spectrometry (ID-LC-MS/MS) and seven currently available immunoassays

Some of the commercially available DHEAS methods show standardization problems and/or a high imprecision. These problems may potentially have clinically adverse consequences. We advise the manufacturers to improve their assays and laboratory specialists to scrutinize the DHEAS method they employ.