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. 2021 Jun 23;27(9):1607–1613. doi: 10.1038/s41591-021-01433-3

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© The Author(s) 2021

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Fig. 1 — Number of participants eligible for inclusion at baseline, blood sampling at 2 months and assessment and fatigue evaluation at 6 months. BMEC, Bergen Municipality Emergency Clinic; LTF, lost to follow-up.