TY - JOUR T1 - Crohn's disease of the anal region. JF - Gut JO - Gut SP - 515 LP - 524 DO - 10.1136/gut.6.6.515 VL - 6 IS - 6 AU - B K Gray AU - H E Lockhartmummery AU - B C Morson Y1 - 1965/12/01 UR - http://gut.bmj.com/content/6/6/515.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -