Lung neoplasms   Environmental exposure   Environmental exposure adverse effects   Mesothelioma   Carcinogens   Lung neoplasms etiology   Asbestos   Asbestos adverse effects   Mesothelioma etiology   Serpentine asbestos   Human   Canada   Societies   Medical societies   Great britain   Occupational exposure   World health organization   Occupational exposure adverse effects   Lung neoplasms chemically induced   Mesothelioma chemically induced