RT Journal Article SR Electronic T1 Nefer, Sinuhe and clinical research assessing post-COVID-19 syndrome JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2004423 DO 10.1183/13993003.04423-2020 A1 Soriano, Joan B A1 Waterer, Grant A1 PeƱalvo, Jose Luis A1 Rello, Jordi YR 2021 UL http://erj.ersjournals.com/content/early/2021/01/04/13993003.04423-2020.abstract AB