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

Spending and quality of care for Medicare beneficiaries in Massachusetts--reply.

JAMA. Dec 25, 2013;310(24):2675-6.
McWilliams JM, Landon BE, Chernew ME.

Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.