Enhanced Replicative Capacity and Pathogenicity of HIV-1 Isolated From Individuals Infected With Drug-Resistant Virus and Declining CD4+ T-Cell Counts. - Solomon, Ajantha; Lane, Natalie; Wightman, Fiona; Gorry, Paul R.; Lewin, Sharon R. (JAIDS: Journal of Acquired Immune Deficiency Syndromes, 2005)