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Crohn's Disease
Inflammatory Bowel Diseases
Ulcerative Colitis
Chronic Disease
Infants
Immunosuppressive Agents
Gastrointestinal Agents
6-Mercaptopurine
Azathioprine
Treatment Outcome
Retrospective Studies
Risk Factors
Severity of Illness Index
Age of Onset
Cohort Studies
Drug Therapy, Combination
Child Nutritional Physiological Phenomena
Growth
United States
Chromosomes, Human, Pair 16
Co-Publications
13
12
11
7
6
5
4
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