[1] Yale School of Medicine,Department of Pathology
[2] Yale School of Medicine,Department of Immunobiology
[3] Li Ka Shing Institute of Virology,Department of Medical Microbiology and Immunology
[4] University of Alberta,Department of Pathology and Immunology
[5] Edmonton,Department of Genetics
[6] Alberta T6G 2S2,undefined
[7] Canada,undefined
[8] Washington University School of Medicine,undefined
[9] Howard Hughes Medical Institute,undefined
[10] Yale School of Medicine,undefined
[11] Present addresses: Institute for Stem Cell Biology and Regenerative Medicine,undefined
[12] Stanford University School of Medicine,undefined
[13] Stanford,undefined
[14] California 94305,undefined
[15] USA (M.C.T.); Department of Chemistry,undefined
[16] Linfield College,undefined
[17] McMinnville,undefined
[18] Oregon 97128,undefined
[19] USA (M.B.); Institute for Cellular Biochemistry,undefined
[20] Universitätsmedizin Göttingen,undefined
[21] 37073 Göttingen,undefined
[22] Germany (N.R.).,undefined