Clinical aspects of Crohn's disease of the upper gastrointestinal tract: A comparison with distal Crohn's disease
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Prospective evaluation of upper gastrointestinal mucosal lesions in children with ulcerative colitis and Crohn's disease
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Prevalence of upper gastrointestinal lesions and Helicobacter pylori infection in Crohn's disease
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A comparison of methotrexate with placebo for the maintenance of remission in Crohn's disease
North American Crohn's Study Group Investigators
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Preliminary report on the use of oral tacrolimus (FK506) in the treatment of complicated proximal small bowel and fistulizing Crohn's disease
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