around, so the stakes, the pressure of wanting this to work, to be successful for all those patients, those people out there suffering knowing this could be a solution to the organ shortage crisis, and in the moment, i think it was just remarkable, unbelievable, exciting, exhilarating and i think we felt a remarkable sense of hope for all our patients. >> and the pig kidneys are working properly so far, no issues? >> the study has ended, but the pig kidneys worked for the duration of the study. >> so let's talk about this, because the human host in this case was a man who was an organ donor. he was left braindead after a motorcycle accident. his family readily agreed to this transplant. so tell us a little bit more about the background here in the study. >> so there were a couple of key elements we wanted to be able to test before we moved into living