Footnotes

• Handling editor Vikram Deshpande.

• Contributors CS drafted and revised the manuscript. SR and AT revised the surgery part of the manuscript. PC revised the psychiatry part of the manuscript. FF initiated this project, revised the manuscript for final approval of the version.

• 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.