Footnotes

• Contributors All authors have contributed significantly to the conception, design, writing, and review of this manuscript.

• 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 and public involvement statement This submission is based on the clinical experience of a single patient. Involvement of other patients or the public was not appropriate.

• Patient consent for publication Obtained.

• Provenance and peer review Not commissioned; externally peer reviewed.