1. Department of Environmental and Occupational Health; Colorado School of Public Health; Aurora; Colorado
2. Department of Medicine; Duke University Medical Center; Durham; North Carolina
3. Division of Environmental and Occupational Health; National Jewish Health; Denver; Colorado
4. Agriculture, Forestry, and Fishing Program, Alaska Pacific Regional Office; Centers for Disease Control and Prevention/National Institute for Occupational Safety and Health, Anchorage; Alaska
5. Department of Environmental and Radiological Health Sciences; Colorado State University; Ft. Collins; Colorado
6. High Plains Intermountain Center for Agricultural Health and Safety; Colorado State University; Ft. Collins; Colorado
7. Education and Information Division; Centers for Disease Control and Prevention/National Institute for Occupational Safety and Health; Cincinnati; Ohio
8. Department of Emergency Medicine and Injury Research Center; Medical College of Wisconsin; Milwaukee; Wisconsin