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. Stalking the diagnosis.

N. Engl. J. Med.. Mar 04, 2010;362(9):834-9.
Chamarthi B, Morris CA, Kaiser UB, Katz JT, Loscalzo J.

Clinical Pathological Conference Series, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, USA.