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

T lymphocytes: ontogeny, function, and relevance to clinical disorders.

N. Engl. J. Med.. Oct 29, 1987;317(18):1136-42.
Royer HD, Reinherz EL.

Laboratory of Immunobiology, Dana-Farber Cancer Institute, Boston, MA 02115.