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

Population trends from 2000-2011 in nuclear myocardial perfusion imaging use.

JAMA. Mar 26, 2014;311(12):1248-9.
McNulty EJ, Hung YY, Almers LM, Go AS, Yeh RW.

Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts.