A military vet's Parkinson's battle, plus AI's role in cancer care and a mother's fight

After 17 years of serving his country, Mark Kelm is now providing a different type of service: He's advocating for others who, like him, are living with Parkinson's disease. He's shown in the family picture at left, center, plus on the right. 'A NEW KIND OF SERVICE' – After 17 years in the military, a Minnesota man received a shocking diagnosis – and is now committed to helping others with the same disease. PERFECT MATCH – A young girl with acute leukemia is now in cancer remission thanks to her sister's lifesaving bone marrow donation. CANCER PREDICTIONS – Can artificial intelligence predict whether cancer treatments will work?