SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Seminars in Pediatric Surgery provides current state-of-the-art reviews of subjects of interest to those charged with the surgical care of young patients. Each bimontly issue addresses a single topic with articles written by the experts in the field. Guest editors, all noted authorities, prepare each issue. 2014 Topics, Volume 23 will publish 6 issues: February Bariatric Surgery and Childhood Obesity Evan Nadler
April Endocrine Disorders in Children Paul Johnson
June Regenerative Medicine in Pediatric Surgery Paolo De Coppi and Tracy GrikscheitAugust Vascular Malformations Roshni Dasgupta and Steven Fishman October Neonatal Surgery Pietro Bagolan and Paul Losty
December Surgery of the Peritoneum Hugh Grant
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