Laura Molina, 9, shows the mask she created expressing the feeling of "sadness." Her mother is being treated for breast cancer at the Lyndon B. Johnson public hospital in Houston.
Actress Angelina Jolie at a news conference with Secretary of State John Kerry (in background) and other foreign ministers in London last month. They held a forum on how to reduce sexual violence against women in conflict zones — an issue she has often spoken about.
Alastair Grant /PA Photos /Landov
A microscopic image of prostate cancer. Researchers have found new genetic markers that flag a person's susceptibility to the disease, as well as breast and ovarian cancer.
Otis Brawley /National Cancer Institute