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 28-2013. A 52-year-old man with cardiac arrest after an acute myocardial infarction.

N. Engl. J. Med.. Sep 12, 2013;369(11):1047-54.
Brown DF, Jaffer FA, Baker JN, Gurol ME.

Department of Emergency Medicine, Massachusetts General Hospital, Boston, USA.