Footnotes

• Twitter @JohnWillan2

• Contributors This manuscript was drafted by AMA and KB with contribution from JMG and SR. The project was supervised by consultants SM and JW who also contributed to the final draft. All authors met the authorship requirements as set by the International Committee of Medical Journal Editors (ICMJE) recommendations and were involved in the patient’s care.

• 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.

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