Higher HIV-1 genetic diversity is associated with AIDS and neuropsychological impairment

George K. Hightower, Joseph K. Wong, Scott L. Letendre, Anya A. Umlauf, Ronald J. Ellis, Caroline C. Ignacio, Robert K. Heaton, Ann C. Collier, Christina M. Marra, David B. Clifford, Benjamin B. Gelman, Justin C. McArthur, Susan Morgello, David M. Simpson, J. A. McCutchan, Igor Grant, Susan J. Little, Douglas D. Richman, Sergei L. Kosakovsky Pond, Davey M. Smith