 Up until now, my discussion has largely been about the primary injuries that occur with traumatic brain injury. However, as I mentioned early in the talk, the consequences of secondary injury to the brain are often more lethal than the primary injury. When we refer to secondary injury to the brain, we're usually talking about these potential complications, which include dissections, strokes secondary to the dissected blood vessels, pseudo-aneurisms, and the effects of mass effect, which include herniation of brain tissue. I will add one more of those secondary complications, which includes hydrocephalus, and that is as there are obstructive clots within the ventricular system, be they at the framing of Monroe, or at the aqueduct of Sylvius, or at the outflow tracts of the fourth ventricle at framing of Majendi or Lushka, you can have obstructive hydrocephalus, which can lead to more complications and more symptoms than the primary injury itself. And therefore, as we sequentially and serially scan patients who have had traumatic brain injury, we have to look for these various complications. Thank you.