dr. fred rivera, tapped into experts in the field and enumerated important next steps in child injury research. and i recommend you get ahold of that as well. so from a personal perspective, there's a range, at de need to . but i think that we can prioritize and we should. >> of all right. thank you very much. let me ask -- i know we're running out of time again. but dr. ashley, in your testimony, i'm struck by the continuing care that's needed for people with traumatic brain injury. and you stated for those americans who experience moderate to severe traumatic brain injury, the recovery often extends beyond hospitalization and requires rehab. you also testified it's the start of a disease -- causative and disease excel active process. can you elaborate the extent they're lifelong conditions? >> yes, sir. the difficulty that we see, of course, is that anything and everything that a human being does is mediated by the brain. so when the brain is injured, the potential for impacting any and every organ system in the body and its function exists. at the most basic level, when a brain cell is inju