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

Clinical problem-solving. A patient with migrating polyarthralgias.

N. Engl. J. Med.. Jul 4, 2013;369(1):75-80.
Casey JD, Solomon DH, Gaziano TA, Miller AL, Loscalzo J.

Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02120, USA.