67. Schnittman, S. M., et al., “The Reservoir for HIV-I in Human Peripheral Blood is a T Cell that Maintains Expression of CD4,” Science, 245 (1989), pp. 305-308.

- Simmonds, P., et al., “Human Immunodeficiency Virus-infected Individuals Contain Provirus in Small Numbers of Peripheral Mononuclear Cells and at Low Copy Numbers,” Journal of Virology, 64 (1990), pp. 864-872.

- Ascher, M. S., et al., “Paradox Remains,” Nature, 375 (1995), p. 196.