Footnotes

• Twitter @rcemprof

• Correction notice This paper has been updated to correct Editor details. This article has been corrected since it first published. The provenance and peer review statement has been included.

• Collaborators RCEM COVID-19 CPD Team: Charles Reynard, Anisa Jabeen Nasir Jafar, Daniel Darbyshire, Gabrielle Prager, Govind Oliver, Simon David Carley.

• Contributors Charlie Reynard and Govind Oliver conducted literature searches. JOR and DH hand searched the grey literature and reference lists of selected papers, in addition. JOR, DH and DD sifted all abstracts and selected 5 articles for inclusion. JOR, DH, JC, DD and FL drafted summaries of individual articles. DH compiled the summaries, drafted and edited the full article for submission.

• 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 Patients and/or the public were not involved in the design, conduct, reporting or dissemination plans of this research.

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