Smoking and inflammatory bowel disease: comparison with systemic lupus erythematosus. A case-control study.


Smoking is rare in patients with ulcerative colitis (UC). Onsets are common after stopping smoking. Several observations suggest possible immunologic mechanisms in UC. As smoking has an immunosuppressive effect, a possible role of smoking in UC could be immunosuppression. In this study an analogous hypothesis was investigated by studying smoking habits in… (More)


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