1. N. S. Templeton and D. D. Lasic (editors), Gene Therapy. Therapeutic Mechanisms and Strategies, Marcel Dekker, New York (2000).
2. N. R. Lemoine and D. N. Cooper, in: D. N. Cooper, S. E. Humphries, and T. Strachan (editors), Human Molecular Genetics, BIOS Sci. Publ., Oxford, UK (1996).
3. K. R. Smith, Arch. Med. Res., 34, 247 (2003).
4. K. R. Smith, J. Biotechnol, 99, 1 (2002).
5. T. Friedmann, Nat. Med., 2, 144 (1996).