Joanna Kerns on breast cancer diagnosis: 'I had never heard of stage 0'

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/ Source: TODAY
By Donna Freydkin

Best known for her role on “Growing Pains,” actress and director Joanna Kerns talks about her decision to get a double mastectomy. Dr. Kristi Funk, surgeon and founder of the Pink Lotus Breast Cancer Center tells Megyn Kelly what women need to know about ductal carcinoma in situ (DCIS) and the new diagnostic tool being used.