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.
Title from BioMedCentral archive screen (viewed Dec. 17, 2001).
Articles added consecutively to the current annual v.
Mode of access: Internet.