There are some things life doesn't prepare you for.

Like sitting your 9- and 10-year-old kids down on the living room couch to tell them that your cancer came back.

Christi Nelson had already been through the wringer— chemo, hospitalization, a mastectomy — when her oncologist delivered the news. Less than six months after being declared breast-cancer-free, the cancer was back. A second round of chemo was the only shot for the 42-year-old.

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