The American Journal of Epidemiology is a peer reviewed journal for empirical research findings, opinion pieces and methodological developments in the field of epidemiological research. It is published semimonthly, and has an impact of 5.454, ranking it 6th out of 105 Journals in the field.

Country
USA
Website
http://aje.oxfordjournals.org
Impact factor
5.454 (2008)

Some content from Wikipedia, licensed under CC BY-SA

The death of open access mega-journals?

The entire scientific publishing world is currently undergoing a massive stress test of quantity vs. quality, open access (free) vs. institutional subscriptions (paywall), and how to best judge the integrity of a publication.