 It was clear evidence that the tumors are not using oxygen for their survival. So what are they living on? How are they growing and alive if they're not using oxygen? And it turns out that they use fermentation. So that fermentation is a form of energy that bypasses oxygen. Well, what are the fuels that are driving their fermentation metabolism? What are they using? And it's glucose and the amino acid glutamine. And those are the two fermentable fuels that allow cancer cells to grow. So the answer to your question is yes, cancer cells live and can you starve them? If we know they're fermenting and we know that they can't live without fermentable fuels and you know that there are only two fermentable fuels that are keeping them alive, then you target and take those two fermentable fuels away and they die.