Prevalence of Periodontopathic Bacteria in Healthy Subjects and Adult Periodontitis Patients in China (Beijing)
中国(北京)における健常者および成人性歯周炎患者の歯周疾患関連細菌の検出頻度

Masaaki Okamoto, Nobuko Maeda
2003 Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology)  
doi:10.2329/perio.45.163 fatcat:2tx52scpinb53ndwvh3kxffare