Ubiali, A., Raguzzoni, G., Scavo, S. B., Bodini, C., Carradori, T. and Martino, A. (2020) “Frequent-users of emergency department: a mixed-methods observational retrospective study in Emilia-Romagna (Italy)”, Online Brazilian Journal of Nursing. Niterói (RJ), 19(2). doi: 10.17665/1676-4285.20206249.