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Yamashita K, Nakagawa R, Okuyama M, Honma S, Takahashi M, Numazawa M. Simultaneous determination of tetrahydrocortisol, allotetrahydrocortisol and tetrahydrocortisone in human urine by liquid chromatography-electrospray ionization tandem mass spectrometry. Steroids. 2008 Aug;73(7):727–37. doi: 10.1016/j.steroids.2008.02.009. PMID: 18394666. |