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. 2023 Apr 23;12(4):608–617. doi: 10.21037/tp-23-83

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2023 Translational Pediatrics. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0.

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The incidence of death and severe complications in very premature infants from 2019 to 2021. The left ordinate axis represents the incidence of various complications, and the right ordinate axis represents the ratio of death, survival without severe complications and survival with severe complications in the above three broken lines. IVH, intraventricular hemorrhage; NEC, necrotizing enterocolitis; PVL, periventricular leukomalacia; BPD, bronchopulmonary dysplasia; ROP, retinopathy of prematurity.