July 2020). "Estimating the burden of SARS-CoV-2 in France". October 2020). "The effects of COPD and smoking background on the severity of COVID-19: A systemic evaluate and meta-investigation". Dillon, Christopher (4 October 2014). "5". Batthyány K (13 October 2020). "Coronavirus y Desigualdades preexistentes: Género y Cuidados". Domingo JL, Marquès M, Rovira J (September 2020).