(No access)
Beerenwinkel, N., Antal, T., Dingli, D., Traulsen, A., Kinzler, K. W., Velculescu, V. E., et al. (2007). Genetic progression and the waiting time to cancer. PLoS Computational Biology, 3(11): e225. doi:10. 1371/journal.pcbi.0030225.