COVID-19 symptoms: a case-control study, Portugal, March-April 2020.

Perez Duque, MLuccacioni, HCosta, CMarques, RAntunes, DHansen, LSá Machado, R2021-02-262021-02-262021-02-193360237510.1017/S095026882100042Xhttp://hdl.handle.net/10029/624697enCOVID-19 symptoms: a case-control study, Portugal, March-April 2020.Article1469-4409Epidemiol Infect 2021; advance online publication (ahead of print)