Prevalence of COVID-19 in patients with rheumatoid arthritis (RA) already treated with hydroxychloroquine (HCQ) compared with HCQ-naive patients with RA: a multicentre cross-sectional study

Khoubnasabjafari, M; Jouyban, A; Mahdavi, AM; Namvar, L; Esalatmanesh, K; Hajialilo, M; Dastgiri, S; Soroush, M; Safiri, S; Khabbazi, A

Khabbazi, A (通讯作者),Tabriz Univ Med Sci, Connect Tissue Dis Res Ctr, Tabriz 5166, East Azerbaijan, Iran.

POSTGRADUATE MEDICAL JOURNAL, 2022; 98 (E2): E92