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Brooks, C.J.W.; Thawley, A.R.; Rocher, P.; Middleditch, B.S.; Anthony, G.M.; Stillwell, W.G., Characterization of Steroidal Drug Metabolites by Combined Gas Chromatography-Mass Spectrometry, J. Chromatogr. Sci., 1971, 9, 1, 35-43, https://doi.org/10.1093/chromsci/9.1.35 . [all data]