Differences in clinical manifestations and increased severity of systemic lupus erythematosus between two groups of Hispanics: European Caucasians versus Latin American mestizos (data from the RELESSER registry)

Cruz, BH; Alonso, F; Alen, JC; Pego-Reigosa, JM; Lopez-Longo, FJ; Galindo-Izquierdo, M; Olive, A; Tomero, E; Horcada, L; Uriarte, E; Erausquin, C; Sanchez-Atrio, A; Montilla, C; Soler, GS; Fernandez-Nebro, A; Blanco, R; Rodriguez-Gomez, M; Vela, P; Freire, M;...