Great, thank you.
Dr. Merali, people are very visual, and when you put something like this out, they key on to it, and they see nice red and green things. I do have a bit of a background in research, so it's nice to see this study. I'm wondering, with the PET study, what was the size of the population that came with this. This is one snapshot of one individual, but across the board, what would be the percentage that would have this type of...?