Institution: | 1 Department of Oral and Maxillofacial Surgery,Tsurumi University,Yokohama,Japan;2 Department of Rheumatology and Clinical Immunology,Clinical Research Center for Rheumatology and Allergy,Sagamihara National Hospital,National Hospital Organization,Sagamihara,Japan and 3 Section of Biological Science Research Center for Odontology, Nippon Dental University School of Dentistry,Tokyo,Japan |