The VAS evaluated 3 months after surgery showed difference between the experimental group and control group (VAS=1.0 [range, 0.00-2.00] vs. VAS=2.5 [range, 1.75-3.25]; p=0.014). The systemic pulmonary rehabilitation group showed more significant improvement on the VAS compared with that of the control group 6 months after surgery (VAS=0.0 [range, 0.00-1.00] vs. VAS=2.0 [range, 1.00-2.25]; p=0.004) (Table 3, Fig. 2).