Impact Factor
3.86
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.
"Analytical reviews of internal medicine, dermatology, neurology, pediatrics and psychiatry" (varies).
Print issues ceased with v. 92 (2013).
Also issued online.
Microfilm. v. 1 (1922)-13 (1934). 4 microfilm reels : negative ; 35 mm.
Indexes: Vols. 1-12. 1922-33, in v. 12.
19950524 Not printed on acid-free paper