Affiliation: | 1. Biopolymer Chemistry , Kalamazoo, Ml, 49001, U.S.A.;2. Molecular Biology , Kalamazoo, Ml, 49001, U.S.A.;3. Molecular Biology , Kalamazoo, Ml, 49001, U.S.A.;4. Cancer &5. Viral Diseases Research , The Upjohn Company , Kalamazoo, Ml, 49001, U.S.A. |