Dr. Opal Lee, known as the Grandmother of Juneteenth, is supporting a new cause. As North Texas prepares for Juneteenth celebrations, she is lending her voice to a landmark study.

The study is focused on Black women's health, an issue that is personal to Dr. Lee as a breast cancer survivor. Further details about the study and Dr.

Lee's involvement are available from NBC DFW, as she approaches her 100th birthday and continues to champion important causes in the community.