(Q38889279)
Statements
Genetic variation of HIV type 1 in four World Health Organization-sponsored vaccine evaluation sites: generation of functional envelope (glycoprotein 160) clones representative of sequence subtypes A, B, C, and E. WHO Network for HIV Isolation and Characterization (English)
Gao F
Yue L
Craig S
Thornton CL
Robertson DL
McCutchan FE
Bradac JA
1 November 1994