Research Article
Pretreatment with Pectoral Nerve Block II Is Effective for Reducing Pain in Patients Undergoing Thoracoscopic Lobectomy: A Randomized, Double-Blind, Placebo-Controlled Trial
Figure 2
Baseline and intraoperative HR in the PECS II group and the placebo group. Values represent the means and standard deviations. PECS II group vs. placebo group ().