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Interstitial lung disease has been associated with cobalt in susceptible individuals (Sprince et al., 1988), although in a study involving the manufacture of permanent magnets (Deng et al., 1991) abnormalities in pulmonary function and respiratory symptoms were no higher than those of a reference population, except for 4 subjects out of 362, who showed diffuse patches consistent with pneumoconiosis

Further, we found little evidence of DCC escalating penalties for licensees who repeatedly violated regulations

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doi:10.1057/s41599-019-0326-6