TY - STAND AU - R. Armstrong AU - J. West AU - T. Card BT - Am J Gastroenterol DO - 10.1038/ajg.2009.745 M1 - 7 PY - 2010 SP - 1604 EP - 9 T2 - Am J Gastroenterol TI - Risk of cancer in inflammatory bowel disease treated with azathioprine: a UK population-based case-control study VL - 105 SN - 0002-9270 ER -