- Correspondence to Aleksandra Turkiewicz, Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Clinical Epidemiology Unit, Remissgatan 4, Lund 22185, Sweden;
- Received November 28, 2016
- Revised April 10, 2017
- Accepted April 22, 2017
- First published May 9, 2017.
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