1. Berg, P., Goldstein, L., Marincola, E., Moore, M.T. & Wilson, K. ASCB Newsletter 27, 6 (2004).
2. Wadman, M. Nature 431, 886 (2004).
3. Heffler, S. et al. Health Aff. (Millwood) published online 23 February 2005 (10.1377/hlthaff.W5.74).
4. Jemal, A. et al. CA Cancer J. Clin. 54, 8–29 (2004).
5. Snyderman, R. JAMA 291, 882–883 (2004).