I was talking last week with a guy that I work with in the Stake offices. He's a Ph.D. student and is doing a lot of research with an adviser. He was telling me about a project he is working on now where ultrasound is used in connection with a bunch of other things to shrink tumors in rats. I thought this was cool because I was familiar with this project. The poster describing the experiment was right across the hallway from the entrance to the cadaver lab.
The most interesting thng he told me is that researchers are now really good at curing cancer in rats. The problem is that rats are different from people. The same techniques used to cure rat cancer doesn't work exactly the same way as curing people cancer. This is pretty unfortunate, but there isn't much you can do about it. Doing tests on humans is unethical, but it would be the fastest way to find a cure. It's a problem that we all have to deal with.