Bernice Singleton (left), one of the original mothers in the research project, is seen with her daughter Jenny and granddaughter Gretta. Paige Cowett/WNYC hide caption

itoggle caption Paige Cowett/WNYC

Mary Harris was relieved when Stella was born with a mop of thick black hair, as if she had been protected from the chemo somehow. Howard Harris hide caption

itoggle caption Howard Harris

Robert Schwimmer, 66, and his son Scott Schwimmer, 21, spoke with NPR about Robert's wish to hasten his death under certain circumstances. Here — as in the family photo above — they're in Kauai, Hawaii, on the family's "last big trip" after Robert received a 6-month prognosis in October. Courtesy Scott Schwimmer hide caption

itoggle caption Courtesy Scott Schwimmer

Indian sand artist Sudersan Pattnaik touches up his sculpture for World No Tobacco Day at Golden Sea Beach in Puri, India. Asit Kumar/AFP/Getty Images hide caption

itoggle caption Asit Kumar/AFP/Getty Images

A year after his cancer diagnosis, Henning Mankell is working on a new novel, and he just directed Shakespeare's Hamlet in his adopted country of Mozambique. Pep Bonet/NOOR/Redux hide caption

itoggle caption Pep Bonet/NOOR/Redux

Dr. Richard Schlegel and postdoctoral fellow Nancy Palechor-Ceron use a microscope to look at human epithelial cells growing on mouse fibroblasts at Georgetown University Medical Center. Lauren Wolkoff/Georgetown University hide caption

itoggle caption Lauren Wolkoff/Georgetown University

David Goldhill (second from left) talks with Dan Hilferty of Independence Blue Cross, Kevin Nazemi of Oscar Insurance and Sam Nussbaum of WellPoint in a conversation about health costs. Moderator Avik Roy is at far left. Glen Davis/Forbes hide caption

itoggle caption Glen Davis/Forbes

Radiation therapy is effective in treating breast cancer but typically requires dozens of visits over five to seven weeks. A newer protocol takes just three weeks. Antonia Reeve/Science Source hide caption

itoggle caption Antonia Reeve/Science Source

Georgetown's Robert Clark says it's very difficult to say precisely how many experiments have been spoiled by contaminated cell lines. Phil Humnicky/Courtesy of Georgetown University hide caption

itoggle caption Phil Humnicky/Courtesy of Georgetown University

Brazil's Christ the Redeemer statue is lit up in pink as part of a campaign for breast cancer awareness. The country's survival rate for the disease is improving. Felipe Dana/AP hide caption

itoggle caption Felipe Dana/AP