Mimura, M. A. M.; Hirota, S. K.; Sugaya, N. N.; Sanches Jr, J. A.; Migliari, D. A. Systemic Treatment in Severe Cases of Recurrent Aphthous Stomatitis: An Open Trial . Clinics 2009, 64 (3), 193-198. https://doi.org/10.1590/S1807-59322009000300008.