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Cynthia Assimta Peter and Dinesh Singh declare no conflict of interest.
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Peter, C.A., Singh, D. A “doughnut” in the abdomen. Abdom Radiol 42, 973–974 (2017). https://doi.org/10.1007/s00261-016-0928-z
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DOI: https://doi.org/10.1007/s00261-016-0928-z