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(A) Photograph of gelatin coagulated in cell before irradiation. (B) Gelatin remains intact at a peak power density of 42 W/cm2. (C) Gelatin degeneration (circle) starts at 53 W/cm2. (D) Degeneration (circle) of gelatin mixed with 1.5 mg/dl of ICG starts at a peak power density of 39 W/cm2. Gelatin mixed with ICG degenerates at 42 W/cm2 (E) and 53 W/cm2 (F).
