%0 Letter %T Mild COVID-19 despite inadequate antibody response after repeated vaccinations in rheumatic disease patients with rituximab-induced B cell depletion: a case series. %A Ten Hagen A %A Habermann E %A Hermann S %A Burmester GR %A Biesen R %A Albach FN %J RMD Open %V 8 %N 2 %D 12 2022 %M 36597976 %F 5.806 %R 10.1136/rmdopen-2022-002567 %X