Fig. 5From: Photobiological modulation of hepatoma cell lines and hepatitis B subviral particles secretion in response to 650 nm low level laser treatmentThe viability of HepG2 cells in nonirradiated (A) and irradiated (B, C, D, and E) groups after 24 h, 48 h, and 96 h incubation post-laser irradiation using MTT Assay. Significant differences between the control (A) and their respective experimental groups are represented on the bar columns as (***) = P < 0.001Back to article page