Interpretation of Systemic Sclerosis and the COVID-19 Pandemic:World Scleroderma Foundation Preliminary Advice for Patient Management 
CUI Jiehan,YANG Lin,WANG Xiaoping,HE Jingjing,PENG Xiaoxin,FENG Xing,MA Jun,LIU Aijing
Chinese General Practice . 2021, (17): 2218 -2223 .  DOI: 10.12114/j.issn.1007-9572.2021.00.445