TY - JOUR T1 - Correction JF - Gut JO - Gut SP - 540 LP - 540 DO - 10.1136/gut.26.5.540-b VL - 26 IS - 5 A2 - , Y1 - 1985/05/01 UR - http://gut.bmj.com/content/26/5/540.3.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -