They're the trusted public figures of the medical profession, but many of the most famous medics in the UK will have been approached by, and accepted money from, companies wishing to promote their products - and the public will never know.

To talk about conflicts of interest in media doctors, we’re joined by two of the most recognisable medics on our screens - Chris and Xand van Tulleken, and the GP who persuaded them to think about what they receive cash for, Margaret McCartney.

Read our investigation into how the UK's medical royal colleges receive millions from drug and medical devices companies and Margaret McCartney's plea that “You have to be above reproach”: why doctors need to get better at managing their conflicts of interest