2Rogers RS 3rd.Recurrent aphthous stomatitis:clinical characteristics and associated systemic disorders.Semin Cutan Med Surg,1997,16(4):278-283.
3Rivera-Hidalgo F,Shulman JD,Beach MM.The association of tobacco and other factors with recurrent aphthous stomatitis in an US adult population.Oral Dis,2004,10(6):335-345.
4Shulman JD.An exploration of point,annual,and lifetime prevalence in characterizing recurrent aphthous stomatitis in USA children and youths.J Oral Pathol Med,2004,33(9):558-566.
5Zain RB.Oral recurrent aphthous ulcers/stomatitis:prevalence in Malaysia and an epidemiological update.J Oral Sci,2000,42(1):15-19.
6Kovac-Kovacic M,Skaleric U.The prevalence of oral mucosal lesions in a population in Ljubljana,Slovenia.J Oral Pathol Med,2000,29(7):331-335.
