“The results of the … showed that ZGC Decoction … anti-arrhythmic drugs had significant effect on improving total effects (RR: 1.30 [1.22, 1.38]; P<0.00001) and relieving … ventricular premature beats (MD: -6.66 [-12.94, -0.37]; P=0.04) compared with anti-arrhythmic drugs alone.”