Paper Chase is a research database designed to offer abstracts of research articles published in journals that have a highly rated impact factor as determined by ISI Impact Factor and PageRank. Abstracts are organized by date, with the most recently published papers listed first. 

Paper Chase

Case records of the Massachusetts General Hospital. Case 19-2013. A 35-year-old woman with recurrent goiter and ductal carcinoma of the breast.

N. Engl. J. Med.. Jun 20, 2013;368(25):2416-24.
Alexander EK, Chan-Smutko G, Saksena MA, Popa I.

Department of Medicine, Brigham and Women's Hospital, Boston, USA.