 Targeted therapy is where we have identified a mutation that is a driver in your cancer and then we can give you a medication that's specifically targeted to that mutation. It's not chemotherapy. It's not attacking every cell in your body. It's a therapy that's being delivered specifically to where the cancer is. I had a patient who is a young woman. She was doing perfectly fine and then suddenly got a headache and then it became a seizure. She came into the emergency room, found that she had lung cancer spread to her brain. Totally devastating. She didn't smoke, lived a very clean life. Turns out that after getting her radiation that she had an epidermal growth factor receptor mutation and we were able to give her a targeted therapy. Now she takes a pill a day and has been in remission for more than a year. Seeing patients living their lives normally, it's what brings joy to my day. It's the highlight of my day.