Original Article: PDF Only
Lindström, Ingalill RPT*; Öhlund, Carl MD*; Eek, Claes BSc†; Wallin, Leif MD PhD†; Peterson, Lars-Erik BSc‡; Nachemson, Alf MD, PhD*
*Department of Orthopaedics, University of Göteborg, Sahlgren Hospital, Göteborg, Sweden
†Volvo Company, University of Göteborg, Sahlgren Hospital, Göteborg, Sweden
‡Department of Statistics, University of Göteborg, Göteborg, Sweden