1. Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden
2. Department of Clinical Sciences at Danderyd Hospital (KIDS), Karolinska Institutet, Stockholm, Sweden
3. Department of Orthopaedics, Östersund Hospital, Östersund, Sweden
4. Department of Radiology, Sundsvall Hospital, Sundsvall, Sweden
5. Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates