Footnotes

• Twitter @ShrillaB, @irumdiamond

• Collaborators Rasha Al-Lamee, Shazia Hussain, Ashley Nisbet, Margaret McEntagert.

• Contributors SB devised the paper and questionnaire and, chose the subjects. NB, PH, HH and IDK each interviewed one of the four featured cardiologists. Dr Al-Lamee, Dr Hussain, Dr McEntagert and Dr Nisbet provided their time for interview and comments on the final draft. SB wrote the final paper, incorporating comments from all the authors and collaborators.

• 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, or conduct, or reporting, or dissemination plans of this research.

• Patient consent for publication Not required.

• Provenance and peer review Commissioned; internally peer reviewed.