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LDH release of HeLa cells exposed to 7.5 μg Hemi-Br/mL (corresponding to 42.75 μg Ag/mL) after 6 h of incubation with and without laser treatment at 640 nm (300 mW, 0.78 W/cm2) for 5 min. The data are expressed as mean ± S.D. (n = 3). (0.0332 (*), 0.0021 (**), 0.002 (***), <0.001 (****)).
