TY - JOUR T1 - Reply JF - Gut JO - Gut SP - 153 LP - 153 DO - 10.1136/gut.36.1.153-a VL - 36 IS - 1 AU - P M Sagar Y1 - 1995/01/01 UR - http://gut.bmj.com/content/36/1/153.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -