Fig. 4. Comparison of cell viabilities (irradiated vs. non-irradiated) for each cell line at the same dose of 19 J cm–2 using blue (455 nm, 30 min, 
), green (520 nm, 15 min, 
), or red (630 nm, 9 min, 
) light. Averages of the cell viability percentages (blue and green irradiated or blue and red irradiated) were analyzed using a one-way ANOVA. **p = 0.005, ***p = 0.0005, ****p < 0.0001.
