13. Walker, C. M., et al., “CD8+ Lymphocytes Can Control HIV Infection in Vitro by Suppressing Virus Replication,” Science, 234 (1986), pp. 1563-1566.

- Clark, S. J., et al., “High Titers of Cytopathic Virus in Plasma of Patients with Symptomatic Primary HIV-infection,” New England Journal of Medicine, 324 (1991), pp. 954- 906.

- Daar, E. S., et al., “Transient High Levels of Viremia in Patients with Primary Human Immunodeficiency Virus Type I Infection,” New England Journal of Medicine, 324 (1991), pp. 961-964.