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
Sleep Medicine Reviews provides International coverage of sleep disorders, their aetiology, diagnosis, treatment and implications for related conditions at an individual and public health level.
Articles review the clinical information published in peer-reviewed journals devoted to the many disciplines involved in sleep medicine, including: pulmonology, psychiatry, psychology, physiology, otolaryngology, paediatrics, geriatrics, cardiology, dentistry, nursing, neurology and general medicine.
The journal publishes narrative reviews, systematic reviews and editorials covering area of controversy and debate, as well as areas of future research.
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