Yes. Great question. So, let me say that, first of all, these clinical conferences are very important to ENDRA and most healthcare technology providers, because they are the meeting point for all parties involved, the providers, the clinicians, the insurers, the strategic partners. And we all go to these meetings to learn about new technology, new treatments, new research. So while the last year and a half has been, I would say a mix of virtual gradually returning to some more in-person meetings. I'm also very happy that ENDRA has been in the field physically very actively going to six to seven of these conferences globally since 2018. So we're not handicapped per se as someone who's trying to be new to the block and only able to kind of introduce ourselves virtually, all of our clinical collaboration partners, University of Pittsburgh in Europe and elsewhere, we met at these conferences. And so we're building on that momentum by continuing to participate virtually when that's the only option. And I'll give you a good example of a big meeting that was just converted. And we just came back from the American Association for Study of Liver Disease surprised everyone. That's a big U.S. meeting and it went virtual for reasons of COVID. So we participated, we have a virtual booth like everyone else there, we have someone who is present virtually. It's not a passive just website waiting for people. We are there. And as soon as someone engages with us in a chat room or via a scheduled meeting, we participate. So it's a good conduit for us. But to finally sort of close your question, Ed, RSNA, Radiological Society of North America one of the biggest conferences in the world, and certainly in the U.S. historically with 40,000 to 50,000 attendees, huge that is in-person. And we have a booth right next to our partner GE Healthcare. It's a little smaller than GE, but it's a very effective vehicle for us and we're looking forward to demonstrating a product there. So I think the world is coming back, but it seems to be two steps forward, one step back, but we're there meeting the pace every step of the way.