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 Reverse Mutation from "Dilute" to "Intense" Pigmentation in the House Mouse.

Proc. Natl. Acad. Sci. U.S.A.. 8 1, 1931;17(8):497-9.
Keeler CE.

Howe Laboratory of the Harvard Medical School.