Original Article: PDF Only
SPENGLER, DAN M. MD*; BIGOS, STANLEY J. MD†; MARTIN, NANCY A. BA‡; ZEH, JUDITH PhD§; FISHER, LLOYD PhD∥; NACHEMSON, ALF MD¶
*From the Department of Orthopaedics and Rehabilitation, Vanderbilt University, Nashville, Tennessee
†From the Department of Orthopaedics, University of Washington, Seattle, Washington
‡From the Department of Corporate Safety and Health, The Boeing Company, Seattle, Washington
§From the Department of Statistics, University of Washington, Seattle, Washington
∥From the Department of Biostatistics, University of Washington, Seattle, Washington
¶From the Department of Orthopaedics, University of Göteborg, Göteborg, Sweden