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WAYNE GLOWACKI / WINNIPEG FREE PRESS Ent. For a story on Dr. Sachin Katyal, senior research scientist at the Research Institute in Oncology and Hematology at CancerCare Manitoba. On the screen is an image of a brain tumour cell that had undergone irradiation to induce DNA damage. He is researching the cause of pediatric brain cancer, specifically DNA damage and how to repair it to stop tumours. Joel Schlesinger story March 31 2016