Figure 1From: Long-term outcomes of patients with refractory gastroesophageal reflux disease following a minimally invasive endoscopic procedure: a prospective observational study Total heartburn score (frequency score + severity score) in 94 patients with or without extraesophageal symptoms before the Stretta procedure and at the 5-year follow-up. A single asterisk (*) denotes a significant difference between bars in the same cluster (P < 0.001).Back to article page