Rheumatoid arthritis disease activity assessed by patient-reported outcomes and flow cytometry before and after an additional dose of COVID-19 vaccine. Issue 7 (15th February 2022) - Tedeschi, Sara K; Stratton, Jacklyn; Ellrodt, Jack Elias; Whelan, Mary Grace; Hayashi, Keigo; Yoshida, Kazuki; Chen, Lin; Adejoorin, Ifeoluwakiisi; Marks, Kathryne Elizabeth; Jonsson, A. Helena; Rao, Deepak A; Solomon, Daniel H