1. National Institutes of Health (US) , Biological Sciences Curriculum Study, Understanding Cancer , in NIH Curriculum Supplement Series , National Institutes of Health (US) , Bethesda (MD) , 2007 . Available from: https://www.ncbi.nlm.nih.gov/books/NBK20362/
2. The website of the National Cancer Institute available from: https://www.cancer.gov
3. Cancer statistics, 2017
4. C. M. O'Connor and J. U.Adams , Essentials of Cell Biology , NPG Education , Cambridge, MA , 2010
5. A History of Cancer Chemotherapy