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Coraci, D., Giovannini, S., Loreti, C. et al. The hyperchoic rim of the normal nerve in ultrasound: how significant is it?. Neurol Sci 41, 2985–2987 (2020). https://doi.org/10.1007/s10072-020-04405-6
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DOI: https://doi.org/10.1007/s10072-020-04405-6