Phenotypic cross-resistance to nelfinavir: The role of prior antiretroviral therapy and the number of mutations in the protease gene

1. Dronda, F.
2. Casado, J.L.
3. Moreno, S.
4. Hertogs, K.
5. García-Arata, I.
6. Antela, A.
7. Pérez-Elías, M.J.
8. Ruiz, L.
9. Larder, B.