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

Smallpox vaccination--the call to arms.

N. Engl. J. Med.. Jan 30, 2003;348(5):381-2.
Schraeder TL, Campion EW.

Department of Medicine, Mount Auburn Hospital, Cambridge, Mass, USA.