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Zhang, C., Shen, Z., Yu, C. et al. Avoiding misdiagnosis of upper gastrointestinal Crohn’s disease. Int J Colorectal Dis 24, 121–122 (2009). https://doi.org/10.1007/s00384-008-0600-3
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DOI: https://doi.org/10.1007/s00384-008-0600-3