1. A. G. Grandea III, D. E. Geraghty, T. Spies, Clinical Research Division, Fred Hutchinson Cancer Research Center, 1124 Columbia Street, Seattle, WA 98104, USA.
2. M. J. Androlewicz, Immunology Program, H. Lee Moffitt Cancer Center and Research Institute and Department of Biochemistry and Molecular Biology, University of South Florida College of Medicine, Tampa, FL 33612, USA.
3. R. S. Athwal, Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, 3420 North Broad Street, Philadelphia, PA 19104, USA.