Erratum

After publication of this article [1], it was noticed the affiliation for Chiara M. Mazzanti was incorrectly included as “Department of Pathology, University of Pisa, Pisa, Italy.” The correct affiliation for Chiara M. Mazzanti is “Fondazione Pisana per la Scienza, Pisa, Italy” and has been included in this erratum in the author list and author details section.