For citations:
Fatenkov O.V., Pirogova Yu.Yu., Shaginyan M.V., Korshunova A.F. Crohn's disease with damage to the upper gastrointestinal tract — difficulties in primary diagnosis (clinical case). Lechaschi Vrach. 2025;1(7-8):28-33. (In Russ.) https://doi.org/10.51793/OS.2025.28.8.004
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