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Letter: limitations of studies to evaluate the significance of anti‐tumour necrosis factor serum levels in Crohn's disease – authors' reply |
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| Authors: | B. G. Levesque B. G. Feagan |
| Affiliation: | 1. Robarts Clinical Trials, Inc., Robarts Research Institute, Western University, , London, ON, Canada;2. Division of Gastroenterology, University of California San Diego, , La Jolla, CA, USA;3. Department of Epidemiology and Biostatistics, Western University, , London, ON, Canada;4. Department of Medicine, Western University, , London, ON, Canada |
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