References
- ↑ Ellen V. Sigal Archived 2013-09-14 at the Wayback Machine . Friends of Cancer Research. Accessed July 2013.
- AACR Applauds Appointment of Ellen V. Sigal, PH.D. to the Patient-centered Outcomes Research Institute Board of Governors. States News Service. September 24, 2010.
- Milk, Leslie; Ryan, Ellen (January 1, 2005). "Washingtonians Of The Year 2004". Washingtonian Magazine. Retrieved 19 July 2013.
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