The decline in CD4+ T lymphocytes as a function of the duration of HIV infection, age at seroconversion, and viral load

1. Soriano, V.
2. Castilla, J.
3. Gómez-Cano, M.
4. Holguín, A.
5. Villalba, N.
6. Mas, A.
7. González-Lahoz, J.