00507nas a2200181   4500000000100000000000100001008004100002100001600043700001400059700001400073700001300087700001400100700001400114245016100128300001400289490000800303022001400311       2018                            d1 aC. Alexakis1 aS. Saxena1 aV. Chhaya1 aE. Cecil1 aA. Majeed1 aR. Pollok00aSmoking Status at Diagnosis and Subsequent Smoking Cessation: Associations With Corticosteroid Use and Intestinal Resection in Crohn\textquoterights Disease  a1689-17000 v113  a0002-9270