Acquisition of pension rights does not preclude establishing work-related disability; cassation dismissed for procedural errors lacking impact.

The Supreme Court dismissed the Social Insurance Institution's cassation appeal against a lower court ruling granting the teacher work-related disability pension. The Social Insurance Institution argued the appellate court violated procedural rules by failing to order an expert opinion and did not address specific evidence requests. The court held that these procedural errors did not influence the substantive outcome because the medical facts clearly established the disability was work-related. Consequently, the cassation was rejected as the alleged violations were not sufficient to overturn the final decision.