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Contributors RT performed the literature search and wrote the manuscript. HH was clinically responsible for the patient and reviewed the article. RT and HH are the guarantors of this article.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Obtained.
Provenance and peer review Not commissioned; externally peer reviewed by Emma Tallantyre, Cardiff, UK.
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