5Natah SS,Konttinen YT,Enattah NS,et al.Recurrent aphthous ulcers today:A review of the growing knowledge[J].Int J Oral Maxillofac Surg,2004,33 (3):221-234.
6Bachtiar EW,Cornain S,Siregar B,et al.Decreased CD4+/CD8+ atio in major type of recurrent aphthous ulcers:Comparing major to minor types of ulcers[J].Asian Pac J Allergy Immunol,1998,16 (2/3):75-79.
7Brozovic S,Vucicevic-Boras V,Bukovic D.Serum IgA,IgG,IgM and salivary IgA in recurrent aphthous ulceration[J].Coll Antropol,2001,25(2):633-637.
8Pedersen A,Ryder LP.Gamma delta T-cell fraction of peripheral blood is increased in recurrent aphthous ulceration[J].Clin Immunol Immunopathol,1994,72(1):98-104.
10Sun A,Chang JG,Chu CT,et al.Preliminary evidence for an association of Epstein-Barr virus with pre-ulcerative oral lesions in patients with recurrent aphthous ulcers or Behcets disease[J].J Oral Pathol Med,1998,27(4):168-175.
