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Results of MTT assays performed in “Time 1” and “Time 2” conditions after PCB118 or PCB153 exposure. 3T3-L1 cells were incubated with or without PCB118 (one or five micromolars) or PCB153 (one or five micromolars) according to the “Time 1” or “Time 2” conditions, and MTT assays were performed as described in materials and methods section.
