RT Journal Article SR Electronic T1 Cardiovascular comorbidity and its impact on patients with COVID-19 JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2001227 DO 10.1183/13993003.01227-2020 VO 55 IS 6 A1 Wei-jie Guan A1 Wen-hua Liang A1 Jian-xing He A1 Nan-shan Zhong YR 2020 UL http://erj.ersjournals.com/content/55/6/2001227.abstract AB