Scientific Reports 6 Article number: 38174; published online: 01 December 2016; updated on: 22 February 2017

This Article contains errors in the Affiliations of M. Santoro and A. Mignarri. The correct affiliations for these authors are listed below:

M. Santoro

Fondazione Don Carlo Gnocchi Onlus, Milan, Italy.

A. Mignarri

Department of Medical, Surgical and Neurological Sciences, University of Siena, Italy.