TY - JOUR T1 - Pancreatic Society of Great Britain and Ireland JF - Gut JO - Gut SP - A342 LP - A344 DO - 10.1136/gut.32.3.A342 VL - 32 IS - 3 A2 - , Y1 - 1991/03/01 UR - http://gut.bmj.com/content/32/3/A342.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -