1. VA Connecticut Healthcare System (J.A.L., J.K.), Newington, Connecticut 06111
2. Orthopedics (A.N., G.G.), University of Connecticut Health Center, Farmington, Connecticut 06030
3. The Departments of Medicine (Y.R., C.A., C.C.P.), University of Connecticut Health Center, Farmington, Connecticut 06030
4. Immunex Research and Development Corporation (M.G., M.W.), Seattle, Washington 98101