RT Journal Article SR Electronic T1 Distinct features of SARS-CoV-2-specific IgA response in COVID-19 patients JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2001526 DO 10.1183/13993003.01526-2020 A1 Hai-qiong Yu A1 Bao-qing Sun A1 Zhang-fu Fang A1 Jin-cun Zhao A1 Xiao-yu Liu A1 Yi-min Li A1 Xi-zhuo Sun A1 Hong-feng Liang A1 Bei Zhong A1 Zhi-feng Huang A1 Pei-yan Zheng A1 Li-feng Tian A1 Hui-Qi Qu A1 De-chen Liu A1 Er-yi Wang A1 Xiao-jun Xiao A1 Shi-yue Li A1 Feng Ye A1 Li Guan A1 Dong-sheng Hu A1 Hakon Hakonarson A1 Zhi-gang Liu A1 Nan-shan Zhong YR 2020 UL http://erj.ersjournals.com/content/early/2020/05/07/13993003.01526-2020.abstract AB