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Norman M, Källén K, Wahlström E, Håkansson S; SNQ Collaboration.Norman M, et al.Acta Paediatr. 2019 Aug;108(8):1411-1418. doi: 10.1111/apa.14823. Epub 2019 May 20.Acta Paediatr. 2019.PMID: 31006126