1. W. G. Rice, M. Bu, L. Graham, C. A. Schaeffer, J. A. Turpin, Laboratory of Antiviral Drug Mechanisms, PRI/DynCorp, National Cancer Institute-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA.
2. J. G. Supko and L. Malspeis, Laboratory of Pharmaceutical Chemistry, Developmental Therapeutics Program, Division of Cancer Treatment, National Cancer Institute, Frederick, MD 21701-8527, USA.
3. R. W. Buckheit Jr. and S. M. Halliday, Virology Research Group, Southern Research Institute-Frederick Research Center, Frederick, MD 21701, USA.
4. D. Clanton, Anti-AIDS Virus Drug Screening Laboratory, PRI/DynCorp, National Cancer Institute-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA.
5. J. Domagala and R. Gogliotti, Chemistry Department, Parke-Davis Pharmaceutical Research Division of Warner-Lambert Company, Ann Arbor, MI 48105, USA.
6. J. P. Bader, Antiviral Evaluations Branch, Developmental Therapeutics Program, Division of Cancer Treatment, National Cancer Institute, Bethesda, MD 20892, USA.
7. L. Coren, R. C. Sowder II, L. O. Arthur, L. E. Henderson, AIDS Vaccine Program, PRI/DynCorp, National Cancer Institute-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA.