Cheung, KJ., Padmanaban, V., Silvestri, V., Schipper, K., Cohen, JD., Fairchild, AN., Gorin, MA., Verdone, JE., Pienta, KJ., Bader, JS. and Ewald, AJ., 2016, “Polyclonal breast cancer metastases arise from collective dissemination of keratin 14-expressing tumor cell clusters,” Proc Natl Acad Sci U S A. 113(7):E854-63.Epub 2016 Feb 1. PMID: 26831077 PubMed