Letter: limitations of studies to evaluate the significance of anti‐tumour necrosis factor serum levels in Crohn's disease |
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Authors: | M. Chaparro J. P. Gisbert |
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Affiliation: | Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), , Madrid, Spain |
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