The researchers used routinely recorded NHS data and so were able to measure the incidence rate of brain injury in newborns without any additional workload for doctors or nurses. (sciencedaily.com)
These were compared to levels in brains of people who had died from other causes. (newscientist.com)
Perhaps this was due merely to the passage of time, or perhaps this was due to a mild form of traumatic brain injury for which memory loss is a common symptom. (sciencemag.org)