TY - JOUR T1 - Reply JF - Gut JO - Gut SP - 475 LP - 475 DO - 10.1136/gut.36.3.475-a VL - 36 IS - 3 AU - I M C Macintyre Y1 - 1995/03/01 UR - http://gut.bmj.com/content/36/3/475.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -