Breakthrough infection after three doses of COVID-19 mRNA vaccine in systemic autoimmune rheumatic diseases: two cases in patients on TNF inhibitor monotherapy. Issue 1 (2nd February 2022) - Vanni, Kathleen MM; Patel, Naomi J; DiIorio, Michael; Kowalski, Emily; Qian, Grace; Cook, Claire E; Ritter, Susan Y; Wallace, Zachary S; Sparks, Jeffrey A