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Wiedenmann, Margarethe; Ipekci, Aziz Mert; Araujo-Chaveron, Lucia; Prajapati, Nirmala; Lam, Yin Ting; Alam, Muhammad Irfanul; L'Huillier, Arnaud G; Zhelyazkov, Ivan; Heron, Leonie; Low, Nicola; Goutaki, Myrofora (2023). SARS-CoV-2 variants of concern in children and adolescents with COVID-19: a systematic review. BMJ open, 13(10), e072280. BMJ Publishing Group 10.1136/bmjopen-2023-072280