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. 2022 Jul 8;9:886229. doi: 10.3389/fmed.2022.886229

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Copyright © 2022 Sarcognato, Sacchi, Fabris, Zanus, Gringeri, Niero, Gallina and Guido.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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TFR1 expression in ICC cases was semi-quantitatively evaluated as negative, 1 + [(A) original magnification 20x], and 2 + [(B) original magnification 20x].