1. Department of Immunology
2. Department of Orthopedics, University of Ulm, D-89070 Ulm, Germany
3. Department of Cell and Molecular Biology, Biomedical Center, Uppsala University, S-751 24 Uppsala, Sweden
4. Department of Biochemistry, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04023-900, Brazil
5. Department of Pathology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, Massachusetts 02215