Impact Factor
4.03
Estimated influence, citation density, publishing volume, and citation integrity from the analytics table.
Volume, recency, access pattern, and citing-community signals from the journal analytics record.
Recent article records with DOI-first linking and condensed abstracts.
Description based on: Vol. 1, no. 2 (July 2007); title from cover.
Print issues ceased with v. 8 (2014).
Also issued online.