Abatacept induced long-term non-progressive reduction in gamma-globulins and autoantibodies: dissociation from disease activity control - Dinis, Valquiria G; Viana, Vilma T; Leon, Elaine Pires; Silva, Clovis Artur Almeida da; Saad, Carla G; Moraes, Julio C; Bonfa, Eloisa Silva Dutra de Oliveira; Medeiros-ribeiro, Ana C (Clinical rheumatology, 2020)