TY - JOUR T1 - Reply JF - Gut JO - Gut SP - 1772 LP - 1773 DO - 10.1136/gut.35.12.1772-b VL - 35 IS - 12 AU - M M Lerch AU - P Hoppe-Seyler AU - W Gerok Y1 - 1994/12/01 UR - http://gut.bmj.com/content/35/12/1772.3.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -