Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KING DF,Intraepithelial elastic fibers and intracytoplasmic glycogen : diagnostic aids in differentiating keratoacanthoma from squamous cell carcinoma,J Cutan Pathol,,,1980,7,,140-148,https://cir.nii.ac.jp/crid/1572261551292309888,https://doi.org/10.1111/j.1600-0560.1980.tb01192.x