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

Health of the nation--coverage for all Americans.

N. Engl. J. Med.. Aug 21, 2008;359(8):777-80.
Baker CD, Caplan A, Davis K, Dentzer S, Epstein AM, Frist B, Galvin RS, King-Shaw RJ, Lee TH, Oberlander JB, Rosenbaum S, Schroeder SA, Tuckson RV.

Harvard Pilgrim Health Care, Wellesley, MA, USA.