Key legal question
Whether the later complaints were causally related to the 2008 accident so as to trigger accident insurance benefits.
Extracted holding
The natural causal link was not established with the required probability; no benefit entitlement followed.
Extracted reasoning
The court upheld the lower court's assessment based on the insurer's internal medical report. The other medical reports mentioned symptoms or a status after cervical trauma, but did not expressly address accident causation. No relevant doubts arose requiring further evidence.