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Ziegler CM, Ertl KM, Delius M, Foerster KM, Crispin A, Wagner F, Heimkes B.Ziegler CM, et al. Among authors: heimkes b.J Child Orthop. 2022 Feb;16(1):19-26. doi: 10.1177/18632521221080472. Epub 2022 Apr 5.J Child Orthop. 2022.PMID: 35615397Free PMC article.