RT Journal Article SR Electronic T1 Predictors of severe COVID-19 in a registry-based Swedish cohort of patients with COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2101920 DO 10.1183/13993003.01920-2021 VO 58 IS 5 A1 Caroline Stridsman A1 Lowie E.G.W. Vanfleteren A1 Jon R. Konradsen A1 Sten Axelsson Fisk A1 Christophe Pedroletti A1 Yvonne Sjöö A1 Jörgen Syk A1 Therese Sterner A1 Anne Lindberg A1 Alf Tunsäter A1 Fredrik Nyberg A1 Ann Ekberg-Jansson A1 Johanna Karlsson Sundbaum YR 2021 UL http://erj.ersjournals.com/content/58/5/2101920.abstract AB