Fig. 2From: Photobiological modulation of hepatoma cell lines and hepatitis B subviral particles secretion in response to 650 nm low level laser treatmentMorphology of HepG2 and HepG2.2.15 cell lines examined using phase-contrast light inverted microscope, after 24 h. culturing before laser irradiation. A Flattened, polygonal cells, arranged in monolayer, B cells with two nucleoli, and C HepG2.2.15 cells with a circular morphology. The magnification power is × 200Back to article page