Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KULHANJIAN JA,Identification of Women at unsuspected risk of primary infection with herpes simplex virus type 2 during pregnancy,N Engl J Med,,,1992,326,,916-920,https://cir.nii.ac.jp/crid/1570291224980618752,