Fig. 6From: Transcutaneous Neuromodulation improved inflammation and sympathovagal ratio in patients with primary biliary ssscholangitis and inadequate response to Ursodeoxycholic acid: a pilot studyAnalysis of Heart Rate Variability (HRV). a Low frequency component (LF) in the control group, PBC group (pretreatment), before and after TN, and before and after sham-TN); b High frequency component (HF) in the control group, PBC group (pretreatment), before and after TN, and before and after sham-TN); c LF/HF ratio in the control group, PBC group (pretreatment), before and after TN, and before and after sham-TN). (n = 10)Back to article page