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

American roulette--contaminated dietary supplements.

N. Engl. J. Med.. Oct 15, 2009;361(16):1523-5.
Cohen PA.

Cambridge Health Alliance, Somerville, MA, USA.