Retraction Note to: J Mammary Gland Biol Neoplasia (2012) 17:23–32

DOI 10.1007/s10911-012-9241-9

This article, “Roles of MicroRNAs and Other Non-coding RNAs in Breast Cancer Metastasis,” by S. Valastyan, published in Journal of Mammary Gland Biology & Neoplasia, Volume 17, Issue 1, pages 23–32 (10.1007/s10911-012-9241-9), has been retracted at the request of the Editor-in-Chief because several studies referenced within the paper have subsequently been retracted due to data manipulation, which is a serious form of publishing misconduct.