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Kerebel, A.; Morfin, R.F.; Berthou, F.L.; Picart, D.; Bardou, L.G.; Floch, H.H., Analysis of C19O3 steroids by thin-layer and gas-liquid chromatography and mass spectrometry, J. Chromatogr., 1977, 140, 3, 229-244, https://doi.org/10.1016/S0021-9673(00)93582-9 . [all data]