<p><b>Copyright information:</b></p><p>Taken from "Breast cancer stroma frequently recruits fetal derived cells during pregnancy"</p><p>http://breast-cancer-research.com/content/10/1/R14</p><p>Breast Cancer Research : BCR 2008;10(1):R14-R14.</p><p>Published online 13 Feb 2008</p><p>PMCID:PMC2374970.</p><p></p