letter . 2021 Aug 6;24(9):1218–1220. doi: 10.1111/1756-185X.14202
© 2021 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd
This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.