Ann Arbor staging

I think we've mentioned that this is a modification.

The Lugano is a modification of the original Ann Arbor staging, although through a few interventions, modified Cotswolds.

And we still learned about it at med school, despite the fact that it was already out of date by the time we got taught it.

I mean, given how long ago we all went through med school, there's probably a lot that we were taught that is now out of date.