TY - JOUR T1 - The mathematics of Crohn disease JF - Canadian Medical Association Journal JO - CMAJ SP - E1143 LP - E1143 DO - 10.1503/cmaj.180764 VL - 190 IS - 38 AU - Suzanne Edison Y1 - 2018/09/24 UR - http://www.cmaj.ca/content/190/38/E1143.abstract ER -