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Gibbs, C.M., Nichols, F.C., Kasperbauer, J.L. et al. CASE REPORT: Meal-Induced Dysphagia and Otalgia Secondary to a Pyriform Sinus Fistula. Dig Dis Sci 49, 1560–1562 (2004). https://doi.org/10.1023/B:DDAS.0000042265.59434.da
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DOI: https://doi.org/10.1023/B:DDAS.0000042265.59434.da