Disease presentation of 1312 childhood-onset systemic lupus erythematosus: influence of ethnicity - Fiorot, Fernanda J; Islabao, Aline G; Pereira, Rosa Maria Rodrigues; Terreri, Maria T; Saad-Magalhaes, Claudia; Novak, Glaucia V; Molinari, Beatriz C; Sampaio, Magda Maria Sales Carneiro; Bonfá, Eloísa Silva Dutra de Oliveira; Silva, Clovis Artur Almeida da (Clinical rheumatology, 2019)