Effects of As₂O₃ and DHA on the viability of Daudi, SH-1, Namalwa, and Jurkat cells. Daudi (Burkitt lymphoma), SH-1 (hairy-cell leukemia), Namalwa (Burkitt lymphoma), and Jurkat (T-cell leukemia) cells were treated for 48 hours with 1 μM As₂O₃ (▨), 25 μM DHA (▦), or 1 μM As₂O₃ and 25 μM DHA in combination (▪). For comparison, cells were left untreated (control, □). Cell viability was determined by means of the colorimetric EZ4U viability assay. Values represent the mean (± SD) of 3 independent experiments.