Work accident claim dismissed; external cause requires proven link between physical stress and health damage.

The Supreme Court quashed the lower court's judgment awarding compensation to the widow of a doctor who died of a stroke. The court found that merely proving the employee faced physical or mental stress was insufficient without establishing a direct causal link between that stress and the resulting health damage. Consequently, the case was remanded to the district court for a proper analysis of the medical evidence and causal relationship.