CD4 and immunodeficiency disease: 17 Kaufmann Kaufmann GR GR Bloch Bloch M M Finlayson Finlayson R R Zaunders Zaunders J J Smith Smith D D Cooper Cooper DA DA The extent of HIV-1 related immunodeficiency and age predict the long term CD4 T lymphocyte response to potent antiretroviral therapy The extent of HIV-1 related immunodeficiency and age predict the long term CD4 T lymphocyte response to potent antiretroviral therapy AIDS AIDS 2002 2002 2 2 15 15 16 16 3 3 359 359 67 67 11834947 11834947