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Ely EW, Brown LM, Fineberg HV; National Academies of Sciences, Engineering, and Medicine Committee on Examining the Working Definition for Long Covid. Long covid defined. N Engl J Med. 2024;391:1746\u201353. https:\/\/doi.org\/10.1056\/NEJMsb2408466.","DOI":"10.1056\/NEJMsb2408466"},{"key":"5","doi-asserted-by":"crossref","unstructured":"5. Thaweethai T, Jolley SE, Karlson EW, Levitan EB, Levy B, McComsey GA, et al. Development of a definition of postacute sequelae of SARS-CoV-2 infection. JAMA. 2023;329:1934\u201346. https:\/\/doi.org\/10.1001\/jama.2023.8823.","DOI":"10.1001\/jama.2023.15712"},{"key":"6","doi-asserted-by":"crossref","unstructured":"6. Natarajan A, Shetty A, Delanerolle G, Zeng Y, Zhang Y, Raymont V, et al. A systematic review and meta-analysis of long COVID symptoms. Syst Rev. 2023;12:88. https:\/\/doi.org\/10.1186\/s13643-023-02250-0.","DOI":"10.1186\/s13643-023-02250-0"},{"key":"7","doi-asserted-by":"crossref","unstructured":"7. 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