Scientific Reports 6: Article number: 2523510.1038/srep25235; published online: April282016; updated: May312016
In the original version of this Article, Affiliations 1 and 2 were not listed in the correct order. The correct affiliations are listed below:
Affiliation 1
Karolinska Institutet, Department of Laboratory Medicine, Stockholm, 141 86, Sweden.
Affiliation 2
International Agency for Research on Cancer, World Health Organization, Screening Group, Lyon, 69372, France.
This error has now been corrected in the PDF and HTML versions of the Article.