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

A Hemochromogen Component of Liver Microsomes.

Proc. Natl. Acad. Sci. U.S.A.. 1 1, 1952;38(1):19-25.
Strittmatter CF, Ball EG.

The Department of Biological Chemistry, Harvard Medical School, Boston.