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

Pigment-epithelium-derived factor--a key coordinator of retinal neuronal and vascular functions.

N. Engl. J. Med.. Feb 3, 2000;342(5):349-51.
King GL, Suzuma K.

Joslin Diabetes Center, Boston, MA 02215, USA.