This struck me as the most important part of the article: Liu pointed out that while research surrounding marijuana's cancer-fighting properties is nothing new

This struck me as the most important part of the article: Liu pointed out that while research surrounding marijuana's cancer-fighting properties is nothing new, his team is the first to document its effect on the disease when used alongside radiation. "The results showed that the final effect was superior to the sum of the parts," he said. "Hopefully, these results will support calls for formal trials in humans to test these combinations."