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Flow cytometry analysis of promastigotes of Leishmania amazonensis treated with C4 for 24 h and stained with propidium iodide (PI). (a) Control group (i.e., untreated cells). (b) Promastigotes treated with 16.0 μM of C4. (c) Promastigotes treated with 103.0 μM of C4. The percentages of PI-stained positive cells are shown in the upper right and left quadrants.
