that is an odd way of comparing market size, the rarity of the disease. I did not assert that the number of GBM patients is as high as women with breast cancer which is also odd to look at it.
Treating a patient with GBM is way more expensive and has a higher price than treating a patient with breast cancer resulting in approx the same market revenue. In other words 10,000 x 10 is the same as 100 x 1000