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

The enemy system.

Lancet. Aug 13, 1988;2(8607):385-7.
Mack JE.

Center for Psychological Studies in the Nuclear Age, Harvard Medical School, Cambridge, Massachusetts 02139.