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Alshahrani, M.A., Aloufi, F.F., Alabdulkarim, F.M. et al. The football sign. Abdom Radiol 42, 2769–2771 (2017). https://doi.org/10.1007/s00261-017-1177-5
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DOI: https://doi.org/10.1007/s00261-017-1177-5