1. Boston University (S.B.), Boston, Massachusetts 02118
2. Harvard School of Public Health (R.A.P., T.U.), Boston, Massachusetts 02115
3. University of Southern California (F.S.), Los Angeles, California 90033
4. University of California (R.H.), San Diego, California 92093
5. Division of AIDS (B.A.), National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892
6. University of Hawaii (C.M.S.), Honolulu, Hawaii 96817