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Burden of disease of COVID-19: Strengthening the collaboration for national studies, Pires, Sara Monteiro, Wyper Grant M. A., Wengler Annelene, Pe\'f1alvo Jos\'e9 L., Haneef Romana, Moran Declan, Cuschieri Sarah, Redondo Hernan G., De Pauw Robby, McDonald Scott A., et al. , Frontiers in Public Health, Mar-06-2022, Volume 10, (2022)\par \par }