?:authorAffiliation
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[\'Norwegian Institute of Public Health, Cluster for Health Services Research, Postboks 222, Skøyen, N-0213, Oslo, Norway. VildeBergstad.Larsen@fhi.no.\', \'Norwegian Institute of Public Health, Cluster for Health Services Research, Postboks 222, Skøyen, N-0213, Oslo, Norway.\', \'Department of Clinical Sciences Lund, Orthopaedics, Clinical Epidemiology Unit, Lund University, Faculty of Medicine, Lund, Sweden.\']
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