Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
WICAL KE,Studies of residual ridge resorption. I. Use of panoramic radiographs for evaluation and classification of mandibular resorption,J Prosthet Dent,,,1974,32,,7-12,https://cir.nii.ac.jp/crid/1570572701387830784,