A pilot case-control study of zidovudine compared with zidovudine plus didanosine in patients with advanced HIV-1 disease and no previous experience with antiretrovirals

1. Gatell, J.M.
2. Leal, M.
3. Mallolas, J.
4. Vidal, C.
5. Pumarola, T.
6. Parra, R.
7. Padró, S.
8. Caruz, A.
9. Falgueras, T.
10. Rey, C.
11. Sánchez-Quijano, A.
12. Torres, Y.
13. Lissen, E.
14. De Anta, M.T.J.
15. Soriano, E.