Scientific Reports 3, Article number: 2258 (2013); Published: 23 July 2013; Updated: 29 November 2013

In the original version of the Article the affiliations for the authors Simin Zhang, Beilei Yuan, Jing Li, Di Wu, Chunchen Lu, Yankai Xia and Xinru Wang were incorrectly listed to include 1State Key Laboratory of Reproductive Medicine, Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi 214002, China. In addition the affiliation for Daozhen Chen was incorrectly listed as 3Nanjing Maternal and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing 210004, China. The correct affiliations appear above and have been corrected in the HTML and PDF versions of this Article.