Increased sMer, but not sAxl, sTyro3, and Gas6 relate with active disease in juvenile systemic lupus erythematosus - Liphaus, Bernadete L; Lima, Laila; Palmeira, Patricia; Silva, Clovis A; Schainberg, Cláudia Goldenstein; Sampaio, Magda Maria Sales Carneiro (Clinical rheumatology, 2020)