Dr. Margaret Goodman - That's what we call a retrograde amnesia, which is an...

That's what we call a retrograde amnesia, which is an amnesia following the event for a period of time. That's a fairly significant concussion. That person may pass all of these tests, which may not prove one thing or another, and the last thing they need is to go back into a situation where they can face subsequent injury to their head again. But nobody wants to hear this.