Key legal question
Whether the later cervical and related complaints were in natural causal connection with the 1993 accident, triggering further accident insurance benefits.
Extracted holding
The proven connection between the complaints and the accident was no more than a mere possibility; natural causation was not established with the required degree of proof.
Extracted reasoning
The medical evidence pointed mainly to degenerative or unclear causes, with no reliable organic post-traumatic findings and no sufficiently proven accident-related worsening.