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Sleep is a monthly peer-reviewed medical journal covering research on sleep. Topics include basic and neuroscience studies of sleep, in vitro and animal models of sleep, studies in clinical or population samples, clinical trials, and epidemiologic studies. It is the official journal of the Sleep Research Society.
Users need to account for qualities and limitations of databases and search engines, especially those searching systematically for records such as in systematic reviews or meta-analyses. [2] As the distinction between a database and a search engine is unclear for these complex document retrieval systems, see:
Sleep Medicine Reviews is a bimonthly peer-reviewed medical journal covering research on the diagnosis and therapy of sleep disturbances and disorders (sleep medicine). It was established in 1997 and is published by Elsevier. The editors-in-chief are J. Krieger (Louis Pasteur University) and Michael V Vitiello (University of Washington).
It was established in 2005 and is published by the American Academy of Sleep Medicine, of which it is the official journal. The editor-in-chief is M. Safwan Badr, MD, MBA (Wayne State University). According to the 2024Journal Citation Reports, the journal's Impact Factor for 2023 is 3.5, and its 5-year Impact Factor is 4.2. [1]
In any given year, the CiteScore of a journal is the number of citations, received in that year and in previous three years, for documents published in the journal during the total period (four years), divided by the total number of published documents (articles, reviews, conference papers, book chapters, and data papers) in the journal during the same four-year period: [3]
The SJR indicator has been developed to be used in extremely large and heterogeneous journal citation networks. It is a size-independent indicator and its values order journals by their "average prestige per article" and can be used for journal comparisons in science evaluation processes.
The index is available online within Web of Science, [11] [12] as part of its Core Collection (there are also CD and printed editions, covering a smaller number of journals). [13] The database allows researchers to search through over 53 million records from thousands of academic journals that were published by publishers from around the world.
The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.