Affiliation: | 1. Boston University School of Public Health, Boston, Massachusetts;2. The Permanente Medical Group, Sacramento, California;3. University of Illinois at Chicago College of Nursing, Chicago, Illinois;4. National Institute for Occupational Safety and Health, Washington, District of Columbia;5. Harvard School of Public Health, Boston, Massachusetts;6. Partners HealthCare System, Occupational Health Services, Boston, Massachusetts;7. Boston College Law School, Newton, Massachusetts |