Scientific Reports 6: Article number: 22804; published online: 16 March 2016; updated: 22 April 2016

In the original version of this Article, there were typographical errors in Affiliation 3 which was incorrectly listed as ‘Department of Radiology, Nanjing Hospital Affiliated to Nanjing Medical University, 210096, Nanjing, China.’ The correct affiliation is listed below:

Department of Radiology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China.

These errors have now been corrected in the PDF and HTML versions of the Article.