RT Journal Article SR Electronic T1 Clinical characteristics and outcomes of patients with COVID-19 and rheumatic disease in China ‘hot spot’ versus in US ‘hot spot’: similarities and differences JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e63 OP e63 DO 10.1136/annrheumdis-2020-218183 VO 80 IS 5 A1 Jun Zhao A1 Rongrong Pang A1 Jian Wu A1 Yanju Guo A1 Yang Yang A1 Libo Zhang A1 Xinyi Xia YR 2021 UL http://ard.bmj.com/content/80/5/e63.abstract AB