title: Circulating immune complexes in recurrent oral ulcers.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000936:Antigen-Antibody Complex / Q000032:analysis*; D003176:Complement C3 / Q000032:analysis; D003181:Complement C4 / Q000032:analysis; D005260:Female; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000276:immunology*
chemical_list: D000936:Antigen-Antibody Complex; D003176:Complement C3; D003181:Complement C4; D007136:Immunoglobulins