Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Itoh Masahiro and Kobayashi Yoshinori and Takeuchi Yutaka,The problems of early extraction in treatment of reversed occlusion.,THE JOURNAL OF HOKKAIDO ORTHODONTIC SOCIETY,0916-202X,Hokkaido Orthodontic Society,1980,8,1,29-45,https://cir.nii.ac.jp/crid/1390282680729056768,https://doi.org/10.20760/dokyo.8.1_29