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

Big marijuana--lessons from big tobacco.

N. Engl. J. Med.. Jul 31, 2014;371(5):399-401.
Richter KP, Levy S.

From the Department of Preventive Medicine and Public Health, University of Kansas Medical Center, and the University of Kansas Cancer Center - both in Kansas City (K.P.R.); and the Division of Developmental Medicine and Adolescent Substance Abuse Program, Boston Children's Hospital, and Harvard Medical School - both in Boston (S.L.).