Impact Factor
4.34
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.
Place of publication varies.
Print issues ceased with v. 55 (2020).
Cover of v. 21, no. 9 (Sept. 1986) misnumbered as v. 26, no. 9.
Supplements accompany some v.
Also issued online.
Vol. 19, no. 1 (JAN-FEB 1984)19920831 Notice not published Printed on acid-free paper