A survey of the long-term effects of talc and kaolin pleurodesis. Research Committee of the British Thoracic Association and the Medical Research Council Pneumoconiosis Unit.

Of 210 patients who underwent pleurodesis with iodized talc or kaolin 14 to 40 years previously, all but 11 were traced. There was no increased incidence of lung cancer and no case of mesothelioma.