Scientific Reports 5: Article number: 12879; published online: 14 August 2015; updated: 21 September 2015

The Competing financial interests statement in this Article should read:

“The University of Bergen has pending patent applications on the screening technology. Family members of the European patent, Application No. 13194536.2 – 1408 are pending. The six authors T.K., H.-H.G., E.H., D.M.F., A.B. and I.R.M. are named as inventors in these applications”.