1. Gene Therapy Center, University of North Carolina, Chapel Hill, NC 27599.
2. Department of Pediatrics, University of North Carolina, Chapel Hill, NC 27599.
3. Harold R. Roberts Comprehensive Hemophilia Diagnostic and Treatment Center, University of North Carolina, Chapel Hill, NC 27599.
4. Department of Biology, University of North Carolina, Chapel Hill, NC 27599.
5. Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06519.
6. Asklepios BioPharmaceutical, Chapel Hill, NC 27517.
7. Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599.
8. Department of Pharmacology, University of North Carolina, Chapel Hill, NC 27599.