Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NEILSON J. R.,"Subtypes of human immunodeficiency virus type 1 and disease stage among women in Nairobi, Kenya",J Virol.,,,1999,73,,4393-4403,https://cir.nii.ac.jp/crid/1571417126695824128,