Impact Factor
3.65
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.
Title from cover.
Print issues ceased with v. 142, no. 12 (2014).
Also issued online.
Will not microfilm 2005225
Vol. 98, no. 1 (FEB 1987)19920824 Notice not published Printed on acid-free paper