Correction to: Scientific Reports https://doi.org/10.1038/s41598-018-23263-z, published online 19 March 2018

This Article contains errors in Reference 25, which is incorrectly given as:

‘O’Sullivan, J. W. et al. Overtesting and undertesting in primary care: a systematic review and meta-analysis BMJ Open 2018;8:e018557. https://doi.org/10.1136/bmjopen-2017-0185578557.’

The correct reference is listed below as ref. 1.