Longitudinal assessment of disease activity and muscle strength in juvenile dermatomyositis: a multicentre registry study - Antonio, D. Hortelan; Carneiro, B. O. L.; Fernandes, T. A. P.; Sallum, Adriana Maluf Elias; Moraes, A. J. Pantoja de; Vecchi, A. P.; Cavalcanti, A.; Jr, C. N. Rabelo; Magalhaes, C. M.; Silva, Clovis Artur Almeida da (Clinical and Experimental Rheumatology, 2025)