Evaluating Helicobacter pylori as a Risk Modifier for Barrett's Esophagus in Gastroesophageal Reflux Disease: Insights From a Multicenter Electronic Health Record-Based Study

评估幽门螺杆菌作为胃食管反流病患者巴雷特食管风险修饰因素的作用：一项基于多中心电子健康记录的研究