 The human body has tons of trillions of cells. Different cells in different organs they have different functions. They actually need very different nutrients. But our human bodies are so beautifully organized that they can transport the right nutrients into the right cells at the right time. The molecular trafficking system in our body is just like the train lines moving the nutrients in our body. It's more complicated than this. But we are designed that they can move. When they get into the trafficking system, they know where exactly the destinations are, which stuff they will make. But for drugs, they are a totally different story. So when someone is sick, what we really did happen is the drugs just to get to the right place and cure all the bad cells. But in reality, what happens is patients usually need to take high doses of drugs. And hopefully, some portion of the drug get to the right place and be effectively enough to cure the disease. But most of the drugs just end up at the wrong places, which could cause very bad side effects, especially for those very toxic cancer drugs. So how do we solve this problem? How do we know that drugs actually get to the right place to be effective? And how can we direct more drugs to the right place? And this is what our research group is working on. So we are developing and using innovative technologies to generate maps of how nutrients and drugs move in the body. And we want to use these maps to direct more drugs to the right destinations. So in the past few years, we have generated some clearer maps of how some important nutrients move in the body. And the exciting thing that we are trying to do now is use this new knowledge we get from these new maps to direct more drugs to the right places. One specific target that we have is the brain tumor. In the last couple of years, we discovered, for the first time, a specific fat nutrient can move into the brain tumor very efficiently while not entering the normal brain at all. So we're trying to use the nutrient trafficking system for this specific fat nutrient to move more drugs to the brain tumor without affecting the normal brain. I believe our studies will contribute significantly to the development of more effective drugs with less side effects. Thank you.