%0 Journal Article %A John R Bennett %T The Esophagus: Reflux and Primary Motor Disorders %D 1981 %R 10.1136/gut.22.8.696 %J Gut %P 696-696 %V 22 %N 8 %U https://gut.bmj.com/content/gutjnl/22/8/696.1.full.pdf