[Recurrent aphthous ulceration, recurrent herpes labialis, and acute necrotizing ulcerative gingivostomatitis in Koreans].
D005892:Gingivitis, Necrotizing Ulcerative / Q000453:epidemiology; D006560:Herpes Labialis / Q000453:epidemiology; D013281:Stomatitis, Aphthous / Q000453:epidemiology