作者单位：Department of Oral Pathology, Nihon University, School of Dentistry at Matsudo, Japan[1]Department of Periodontics, TexasA and MUniversity Baylor College of Dentistry, Dallas, TX, United[2]Department of Oral Diagnosis, Nihon University, School of Dentistry at Matsudo, 2-870-1 Sakaecho[3]
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