Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Mori Airi and Shigeno Kazuhiko and Hara Mizuki and Kawase Masaaki and Etoh Takafumi,Condyloma acuminatum in the umbilical region,Journal of the Japan Organization of Clinical Dermatologists,13497758,Japan Organization of Clinical Dermatologists,2020,37,3,412-416,https://cir.nii.ac.jp/crid/1390567172582993536,https://doi.org/10.3812/jocd.37.412