**The Role of Fibrin(ogen) in Transendothelial Cell Migration During Breast Cancer Metastasis**

Patricia J. Simpson-Haidaris1, Brian J. Rybarczyk2 and Abha Sahni3 *1Department of Medicine, University of Rochester School of Medicine and Dentistry, 2Department of Biology, University of North Carolina at Chapel Hill, 3Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, USA* 
