Three very good questions we might, as patients, ask our doctors when offered a test or a treatment are ‘is it supported by evidence?’, ‘could it harm me?’ and ‘is it necessary?’ These questions are at the heart of the Choosing Wisely initiative, developed in the US and Canada and launched this week here in the UK. It’s all about identifying common interventions that are of questionable value, which we might be better off not having, with a spotlight on the top five in each speciality.

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