Key legal question
Whether the claimed health problems were in a natural causal link with the 1 July 1997 accident.
Extracted holding
The alleged brain injury and resulting complaints were not shown with sufficient probability to be causally linked to the accident.
Extracted reasoning
The court found the first diagnosis of commotio cerebri insufficiently substantiated, noted the long absence of brain-injury treatment or consistent references to such an injury, and upheld the lower court's assessment that the medical evidence did not establish a probable accident-related brain trauma.