Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) BERGSTRESSER PR,"Systemic chemotherapy for psoriasis, a national survey",Arch Dermatol,,,1976,112,,977-981,https://cir.nii.ac.jp/crid/1570572701215707392,https://doi.org/10.1001/archderm.112.7.977