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

Hazards of hindsight--monitoring the safety of nutritional supplements.

N. Engl. J. Med.. Apr 3, 2014;370(14):1277-80.
Cohen PA.

From the Cambridge Health Alliance, Somerville, MA; and Harvard Medical School, Boston.