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

Untreated HIV: harmful even at high CD4 cell counts.

Lancet. Jul 31, 2010;376(9738):306-8.
Bassett IV, Sax PE.

Division of Infectious Disease, Massachusetts General Hospital, Boston, MA 02114, USA.