Key legal question
Whether the claimant fulfilled the contribution period or was exempt because illness prevented gainful employment during the reference period.
Extracted holding
The record was insufficient to finally decide the exemption question; further medical investigation was required before determining entitlement.
Extracted reasoning
A causal link must exist between illness and failure to meet the contribution period. The authorities relied mainly on a sickness insurer's assessment and did not adequately clarify the full medical situation, including possible additional physical or psychological limitations and the ability to undertake part-time work.