KB CEASE, Margalit, H , CORNETTE, JL , PUTNEY, SD , ROBEY, WG , OUYANG, C , STREICHER, HZ , FISCHINGER, PJ , GALLO, RC , DELISI, C , and BERZOFSKY, JA . 1987. “Helper T-Cell Antigenic Site Identification In The Acquired-Immunodeficiency-Syndrome Virus Gp120 Envelope Protein And Induction Of Immunity In Mice To The Native Protein Using A 16-Residue Synthetic Peptide”. Proceedings Of The National Academy Of Sciences Of The United States Of America, 84, Pp. 4249-4253. doi:10.1073/pnas.84.12.4249.