1. Office of the Director National Institute for Occupational Safety and Health Washington District of Columbia USA
2. Division of Field Studies and Engineering, National Institute for Occupational Safety and Health Center for Workers’ Compensation Studies Cincinnati Ohio USA
3. Office of the Director National Institute for Occupational Safety and Health Atlanta Georgia USA
4. International Association of Accident Boards and Commissions Middleton Wisconsin USA
5. Workers Compensation Research Institute Cambridge Massachusetts USA
6. Medical Regulation and Informatics National Council on Compensation Insurance Boca Raton Florida USA