Figure 2. Micrographs of RF/6A cells treated with different laser powers. A: Unirradiated RF/6A cells. B: RF/6A cells treated with 1,000 mW laser irradiation. C: RF/6A cells treated with 1,100 mW laser irradiation. Cells with apoptotic or necrotic morphology were present in the 1,100 mW treated samples. Data are from one of three separate experiments with similar results.