Impact Factor
4.37
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.
Editors: 1963- J. G. Horsfall and K. F. Baker.
Also issued online.
v. 27 (1989)20011126 Notice published Printed on acid-free paper that meets the full ANSI standard for Permanent Paper