1. School of Environment and Life Sciences, University of Salford, Salford, UK
2. School of Medicine, University of Central Lancashire, Preston, UK
3. National Asbestos Observatory, Rome, Italy
4. Faculty of Biology, Medicine and Health, School of Health Sciences, University of Manchester, Manchester, UK
5. Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, USA