Current smoking and COVID-19 risk: results from a population symptom app in over 2.4 million people
Nicholas S Hopkinson, Niccolo Rossi, Julia El-Sayed_Moustafa, Anthony A Laverty, Jennifer K Quint, Maxim Freidin, Alessia Visconti, Ben Murray, Marc Modat, Sebastien Ourselin, Kerrin Small, Richard Davies, Jonathan Wolf, Tim D Spector, Claire J Steves, Mario Falchi
Thorax Jan 2021, thoraxjnl-2020-216422; DOI: 10.1136/thoraxjnl-2020-216422