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

Assessing supplement safety--the FDA's controversial proposal.

N. Engl. J. Med.. Feb 2, 2012;366(5):389-91.
Cohen PA.

Cambridge Health Alliance, Somerville, MA, USA.