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Ilyas, M., Gojwari, T.A., Dar, M.A. et al. Phantom (invisible) organ sign. Abdom Radiol 44, 2939–2940 (2019). https://doi.org/10.1007/s00261-019-02035-x
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DOI: https://doi.org/10.1007/s00261-019-02035-x