1. Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, Michigan.
2. Department of Orthopaedic Surgery, Providence Hospital and Medical Centers, Southfield, Michigan.
3. Department of Pathology, St. John Hospital and Medical Center, Detroit, Michigan.
4. Division of Cancer Biology and Genetics, Department of Pathology and Molecular Medicine, Queen's University Cancer Research Institute, Botterell Hall, Kingston, Ontario, Canada.