%0 Journal Article %A C J H Ingoldby %A R I Hall %A M K Mason %T Reply %D 1988 %R 10.1136/gut.29.4.557 %J Gut %P 557-557 %V 29 %N 4 %U https://gut.bmj.com/content/gutjnl/29/4/557.1.full.pdf