1. Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark;
2. EpidStat Institute, Emeritus Professor of Occupational Medicine and Epidemiology, University of Michigan, Ann Arbor, MI, USA;
3. Center for Occupational Biostatistics & Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA;
4. Occupational Epidemiology, University of Birmingham, Birmingham, UK;
5. DLW Consulting Services, LLC, University of New Mexico School of Medicine, Albuquerque, NM, USA