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 Guan, Wei-jie A1 Liang, Wen-hua A1 He, Jian-xing A1 Zhong, Nan-shan YR 2020 UL http://erj.ersjournals.com/content/55/6/2001227.abstract AB