1. Musculoskeletal Conditions in the United States;Praemer,1999
2. Current concepts review. Occupational orthopaedics;Frymoyer;J Bone Joint Surg,1986
3. Upper Extremity Disorders: Frequency Impact and Cost;Kelsey,1997
4. The Burden of Musculoskeletal Diseases in the United States: Prevalence, Societal and Economic Cost;Jacobs,2008
5. A brief history and comparative analysis of disability systems and impairment rating guides;Luck;Orthop Clin North Am,1988