AIM: To investigate the agreement between esophageal manometry and pH step-up method in two different patient positions.......

目的 对５２例有胃食管反流症状的患者进行食管测压及２４小时ｐＨ监测，运用统计学方法分析了测压和ＰＨ结果，研究其相关性。方法 应用多导胃肠功能......