Melanoma gene signature key to fighting cancer, research shows

Rich Pedroncelli

Melanoma

In this Wednesday, June, 22, 2011, photo, Lisa Andrews puts on sun screen while poolside with her daughters Lauryn, 4, and Elliana 6, at their home in Carmichael, Calif. Andrews was 35 when diagnosed with malignant melanoma that had to be removed from her leg. Now 41, Andrews watches her skin for signs of cancer and attributes the cancer to her time in a tanning bed, which she frequented one to three times a week in the winter months as a teenager. (AP Photo/Rich Pedroncelli)