TY - JOUR T1 - Correction JF - Gut JO - Gut SP - 366 LP - 366 DO - 10.1136/gut.28.3.366-a VL - 28 IS - 3 A2 - , Y1 - 1987/03/01 UR - http://gut.bmj.com/content/28/3/366.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -