References

Baumann, M., M. Krause and R. Hill, 2008. Exploring the role of cancer stem cells in radioresistance. Nat. Rev. Can., 8: 545-554.
Direct Link  |  

Boustie, J. and M. Grube, 2005. Lichens: A promising source of bioactive secondary metabolites. Plant Genetic Resour. Charact. Utiliz., 3: 273-287.
CrossRef  |  Direct Link  |  

Kamb, A., S. Wee and C. Lengauer, 2007. Why is cancer drug discovery so difficult? Nat. Rev. Drug Discov., 6: 115-120.
Direct Link  |  

Lawrey, J.D., 1986. Biological role of lichen substances. Bryologist, 89: 111-122.
Direct Link  |  

Prestwich, R.J., D. Shakespeare and S. Waters, 2007. The rationale and current role of chemoradiotherapy. J. Radiotherapy, 6: 11-19.
CrossRef  |  Direct Link  |  

Vermeulen, K., D.R. Van Bockstaele and Z.N. Berneman, 2003. The cell cycle: A review of regulation, deregulation and therapeutic targets in cancer. Cell Proliferation, 36: 131-149.
CrossRef  |  Direct Link  |