1. About the USPSTF. U.S. Preventive Services Task Force. https://www.uspreventiveservicestaskforce.org/uspstf/about-uspstf. Updated September 2021. Accessed February 25, 2021.
2. U.S. Preventive Services Task Force . (USPSTF) insufficient evidence (I) statements. NIH, Office of Disease Prevention. https://prevention.nih.gov/research-priorities/research-needs-and-gaps/i-statements. Updated October 2021. Accessed February 25, 2021.
3. Our partners. U.S. Preventive Services Task Force. https://www.uspreventiveservicestaskforce.org/uspstf/about-uspstf/our-partners. Updated September 2021. Accessed February 25, 2021.
4. Funding of U.S. biomedical research. 2003-2008;Dorsey;JAMA,2010
5. The anatomy of medical research: U.S. and international comparisons;3rd;JAMA,2015