Figure 2. Geometric mean of serum tumor necrosis factor-α (ng/mL) and regulated on activation, normal T cell expressed and secreted (ng/mL) among the three groups in the pre- and post-operative (3 hours, 24 hours, 72 hours) period T: Thunderbeat; H: Harmonic; L: Ligasure; TNF: Tumor necrosis factor; RANTES: Regulated on activation, normal T cell expressed and secreted.