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The data that support the findings of this study are available from the corresponding author.
References
Kelly HA, Mac Callum WG (2005) Pneumaturia. JAMA 31:375–381. https://doi.org/10.1001/jama.1898.92450080001001
Huang JJ, Tseng CC (2000) Emphysematous pyelonephritis: clinicoradiological classification, management, prognosis, and pathogenesis. Arch Intern Med 160(6):797–805. https://doi.org/10.1001/archinte.160.6.797
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Vergura, M., Pellegrino, A.M., Piemontese, M. et al. Ghosts in the renal pelvises: what are they?. J Nephrol 35, 1041–1042 (2022). https://doi.org/10.1007/s40620-021-01074-2
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DOI: https://doi.org/10.1007/s40620-021-01074-2