Persistence of somatic symptoms after COVID-19 in the Netherlands: an observational cohort study.

"Declaration of interests We declare no competing interests."

"AcknowledgmentsWe thank Nord van den Bos (University of Groningen, University Medical Center Groningen, Groningen, Netherlands) for his contributions and critical thinking during the initial stages of this study, and Martijn Nawijn (University of Groningen, University Medical Center Groningen, Groningen, Netherlands) for commenting on the draft manuscript. This work was supported by the ZonMw Gender and Health Program (849200013) and the ZonMw COVID-19 Program (10430302110002). The Lifelines initiative has been made possible by subsidy from the Dutch Ministry of Health, Welfare, and Sport, the Dutch Ministry of Economic Affairs, the University Medical Center Groningen, University of Groningen, and the Provinces in the north of the Netherlands (Drenthe, Friesland, and Groningen)."