- ^ "Breast and Ovarian Cancer and Family History Risk Categories". Center for Disease Control. https://www.cdc.gov/genomics/resources/diseases/breast_ovarian_cancer/risk_categories.htm.
- ^ "First, Second and Third Degree Relative". Blue Cross Blue Shield. https://www.bcbst.com/mpmanual/First_and_Second_Degree_Relative.htm.
- ^ "NCI Dictionary of Genetics Terms". Cancer.gov. http://www.cancer.gov/publications/dictionaries/genetics-dictionary?cdrid=485395.
|This page uses content from the English language Wikipedia. The original content was at Second-degree relative. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.|
Community content is available under CC-BY-SA unless otherwise noted.