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Conflict of interest
Francesco Esposito, Marco Di Serafino, Carmela Mercogliano, Valerio Vitale, Paolo Sgambati and Gianfranco Vallone declare that they have no conflict of interest related to this paper.
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Esposito, F., Di Serafino, M., Mercogliano, C. et al. The “whirlpool sign”, a US finding in partial torsion of the spermatic cord: 4 cases. J Ultrasound 17, 313–315 (2014). https://doi.org/10.1007/s40477-014-0095-4
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DOI: https://doi.org/10.1007/s40477-014-0095-4