would have been without inclusion of scan. Which is why I don't think this is valid. Andrew is Harvard trained researcher. He knows perception is a qualitative measurement and that scans are quantitative. Scans do not show perceptual improvement. They show measurable, quantitative data. He knows there is no mixing up the two. Perceptual improvement is the patients self-reporting of "I think I feel a little better since I started taking this drug". Scan data is 'tumor reduced from 3.25cm diam to 2.98cm diam'.