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. 2022 Oct 12;10:952315. doi: 10.3389/fped.2022.952315

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© 2022 Liu, Fu and Qin.

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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LUS monitoring decreases the initial dose of PS. As shown in Figure 4, when PS was applied under LUS monitoring, the initial dose used was decreased by nearly half compared with the dose recommended by the International Guidelines. LUS, lung ultrasound; PS, pulmonary surfactant.