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

Individual responsibility or a policy solution--cap and trade for the U.S. diet?

N. Engl. J. Med.. Oct 27, 2011;365(17):1561-3.
Lewis KH, Rosenthal MB.

Department of Population Medicine, Harvard Medical School and the Harvard Pilgrim Health Care Institute, Boston, USA.