1. Seer. Estimated New Cancer Cases and Deaths for 2008. Available from: http://seer.cancer.gov/csr/1975_2005/results_single/sect_01_table.01.pdf, viewed December 2, 2013.
2. Funding for Various Research Areas. Available from: http://obf.cancer.gov/financial/historical.htm.
3. Precancer: The Beginning and the End of Cancer;Berman,2010
4. Berman JJ. Developmental Lineage Classification and Taxonomy of Neoplasms. Available from: http://www.julesberman.info/neoclxml.gz.
5. Neoplasms: Principles of Development and Diversity;Berman,2009