New applications for the serum NT-proBNP assay in the assessment of cardiac function Applications of extractive-derivatization sample preparation in a clinical toxicology laboratory setting Method development for the measurement of 1,2-dihydroxybutyl mercapturic acid (DHBMA) as a biomarker of butadiene exposure using NCI-GC-MS The biological variation of 25(OH)D in healthy subjects Diabetes Mellitus
