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

Muscling in: Uncovering the origins of rhabdomyosarcoma.

Nat. Med.. 2 6, 2010;16(2):171-3.
Hettmer S, Wagers AJ.

Department of Stem Cell and Regenerative Biology, Howard Hughes Medical Institute, Harvard University and Joslin Diabetes Center, Cambridge, Massachusetts, USA.