Certification of unfitness for work.
D000328:Adult; D000368:Aged; D001291:Attitude of Health Personnel; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007494:Ireland; D008297:Male; D008875:Middle Aged; D010820:Physicians / Q000523:psychology*; D012959:Socioeconomic Factors