Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Stephen S. Hwang and Terence J. Boyle and H. Kim Lyerly and Bryan R. Cullen,Identification of the Envelope V3 Loop as the Primary Determinant of Cell Tropism in HIV-1,Science,0036-8075,American Association for the Advancement of Science (AAAS),1991-07-05,253,5015,71-74,https://cir.nii.ac.jp/crid/1363388846139815168,https://doi.org/10.1126/science.1905842