- Correspondence to Dr Mads Ammitzbøll-Danielsen, Rigshospitalet, Centre of Head and Orthopaedics, Center for Rheumatology and Spine Diseases, Copenhagen Center for Arthritis Research, Indgang 5, stuen, Ndr. Ringvej 57, Glostrup 2600, Denmark;
- Received May 4, 2016
- Revised August 16, 2016
- Accepted August 18, 2016
- First published September 7, 2016.
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