1 | Department of Chemical and Biological Work Environment, STAMI National Institute of Occupational Health, Oslo, Norway |
2 | Centre for Public Health Research, Massey University, Wellington, New Zealand |
3 | Department of Public Health, Section for Environment, Work and Health, Aarhus University, Aarhus, Denmark |
4 | Department of Occupational Medicine, Aalborg University Hospital, Aalborg, Denmark |
5 | Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, United Kingdom |