%0 Journal Article %A R M Watkins %A A R Dennison %A J Collin %T Drug therapy and perforated peptic ulcer. %D 1985 %R 10.1136/gut.26.9.981 %J Gut %P 981-982 %V 26 %N 9 %U https://gut.bmj.com/content/gutjnl/26/9/981.1.full.pdf