article 2022 12 pages COVID-19 and athletes: Endurance sport and activity resilience study—CAESAR study Daniel Śliż, Szczepan Wiecha, Katarzyna Ulaszewska, Jakub S. Gąsior, Marcin Lewandowski, Przemysław Seweryn Kasiak, Artur Mamcarz JournalFrontiers in PhysiologyDOI10.3389/fphys.2022.1078763Publication typeOriginal ResearchPopulationendurance athletes View on DOI ↗