How one special Pink Day helps save and support cancer patients

When Rachel Wojnilower was an undergraduate at American University in Washington, D.C., she did all kinds of activities with her Jewish sorority, Alpha Epsilon Phi. Now 36, Wojnilower has let most of them fade from memory.

But in retrospect, one in particular stands out.

That's because about five years after graduating, Wojnilower got married and underwent genetic testing along with her husband as they both prepared for future children. They were surprised when they each tested positive as carriers of a potentially dangerous mutation, and even more so when Wojnilower learned, after additional...