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. 2021 May 25;9:635503. doi: 10.3389/fped.2021.635503

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Copyright © 2021 Di Filippo, Giannini, Attanasi, Dodi, Scaparrotta, Petrosino, Di Pillo and Chiarelli.

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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Correlation of gestational age (expressed in weeks) and DLCO z-score in preterm children and term controls at 11 years of age. The positive correlation was found only in the preterm group.