Impact Factor
3.33
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.
Print issues ceased with Vol. 58, no. 2 (2013).
Some vols. have supplments.
Also issued online.
Issued online in March and September and collective print issue in September comprising both online issues, 2014- .