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Effects of compounds 3b, 4c, and 4e on the free sterol composition of L. amazonensis promastigotesa
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Sterols were extracted from cells exposed to the indicated drug concentration for 96 h; they were separated from polar lipids by silicic acid column chromatography and analyzed by quantitative capillary gas-liquid chromatography and mass spectrometry. Composition is expressed as mass percentages. ND, not detected.
