Affiliation: | (1) The Wistar Institute of Anatomy and Biology, 19104 Philadelphia, PA, USA;(2) Division of Immunology and Rheumatology, Department of Medicine, Stanford University School of Medicine, 94305 Stanford, CA, USA;(3) Department of Developmental Biology, Max-Planck Institut für Immunobiologie, Stübeweg 51, P.O. Box 1169, D-7800 Freiburg-Zähringen, Germany;(4) The Jackson Laboratory, 600 Main Street, 04609 Bar Harbor, ME, USA |