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片山 博史, 加藤 保夫. "1.小規模窯業集団におけるじん肺手帳未所持の管理3退職者に対するアンケート調査(中小企業安全衛生研究会第35回全国集会)." SANGYO EISEIGAKU ZASSHI 44.1 (2002) 30