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

Case records of the Massachusetts General Hospital. Case 20-2007. An 11-year-old boy with a calcified mass in the nose.

N. Engl. J. Med.. Jun 28, 2007;356(26):2721-30.
Cunningham MJ, Lin DT, Curry WT, Ebb DH, Yock TI, Curtin HD, Faquin WC.

Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, USA.