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
Injury was founded in 1969 and is an international journal dealing with all aspects of trauma care and accident surgery. Our primary aim is to facilitate the exchange of ideas, techniques and information among all members of the trauma team.
Topics covered include: trauma systems and management; surgical procedures; epidemiological studies; surgery (of all tissues); resuscitation; biomechanics; rehabilitation; anaesthesia; radiology; basic science of local and systemic response to trauma and tissue healing.
Regular features include: original research papers; review articles; case reports; ideas and innovations detailing novel and effective solutions to surgical problems; book reviews; calendar of world-wide meetings.
Letters that comment on an article previously published in Injury are particularly encouraged, and the authors will be given the opportunity to respond. Please submit letters to the editor by e-mail where possible to firstname.lastname@example.org.