Site-specific differences in T cell frequencies and phenotypes in the blood and gut of HIV-uninfected and ART-treated HIV+ adults. oleh Steven A Yukl, Amandeep K Shergill, Valerie Girling, Qingsheng Li, Maudi Killian, Lorrie Epling, Peilin Li, Philipp Kaiser, Ashley Haase, Diane V Havlir, Kenneth McQuaid, Elizabeth Sinclair, Joseph K Wong