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Chen Z, Li J, Zhang J, Xing X, Gao W, Lu Z, Deng H. Simultaneous determination of hair cortisol, cortisone and DHEAS with liquid chromatography-electrospray ionization-tandem mass spectrometry in negative mode. J Chromatogr B Analyt Technol Biomed Life Sci. 2013 Jun 15;929():187–94. doi: 10.1016/j.jchromb.2013.04.026. PMID: 23685429. |