Fig. 5
From: A highly effective, rodent model of complete heart block by epicardial radiofrequency ablation

Heart rate variability. HRV analysis for WT (n = 5) and CAVB (n = 4) models, day five post-surgery: (a) average RR intervals, (b) RMSSD, (c) SDNN and (d) SDRR for 1-hour light and dark periods with standard deviation error bars.