Authors: Hyland C, Mertz AF, Forscher P, Dufresne E. Year: 2014Month: May 14Journal: Scientific ReportsVolume: 4:Pages: 4961Publication Link: http://www.nature.com/srep/2014/140514/srep04961/full/srep04961.htmlPMID: 24825441PMCID: PMC4019958