著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) OKADA Mitsugi and SUZUKI Junji and KOZAI Katsuyuki and NAGASAKA Nobuo,A two-year longitudinal study of periodontal condition in early adolescence,Pediatric dental journal : international journal of Japanese Society of Pediatric Dentistry,09172394,,1998-07-25,8,1,139-142,https://cir.nii.ac.jp/crid/1571417125254989696,