consider scope.

[harryhoch]

"The format is intended for rare and undiagnosed disease patients. It is not intended for cancer patients (although presence of cancer may be a feature of the disease). It is not intended for common disease patients."

Cancer is certainly a special case that will create many difficulties (some of which we're working on), but why not common diseases? Can we define the format as something that might reasonably be extended to handle common disease?

If not, we should say why common diseases won't work.