TY - JOUR T1 - Correction JF - Gut JO - Gut SP - 448 LP - 448 DO - 10.1136/gut.37.3.448 VL - 37 IS - 3 A2 - , Y1 - 1995/09/01 UR - http://gut.bmj.com/content/37/3/448.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -