Scimago Journal & Country Rank

Sleep Medicine Researchopen access


South Korea

Universities and research institutions in South Korea
Media Ranking in South Korea

Subject Area and Category


Korean Society of Sleep Medicine



Publication type



20939175, 22338853





How to publish in this journal


Sleep Medicine Research (Sleep Med Res) is an official journal of the Asian Society of Sleep Medicine (ASSM), Korean Society of Sleep Medicine (KSSM), and Korean Society of Sleep Research, published two times in June and December. The journal aims to contribute to the better understanding of sleep physiology and sleep disorders. Sleep Medicine Research covers both basic and clinical contributions relevant to physiology or pathophysiology of normal sleep and full spectrum of sleep disorders including sleep apnea, insomnia, circadian rhythm disorders, sleep movement disorders, parasomnia, sleep deprivation. Original results from basic sleep science and related topics in medical, neurologic, psychiatric, dental, surgical, and public health fields are also included. Papers, to be accepted, will include original article (clinical and basic sleep research), review articles, brief communications (including case reports), images in sleep medicine, and letters to the editor. Join the conversation about this journal

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Neurology (clinical)2019Q4
Neurology (clinical)2020Q4
Neurology (clinical)2021Q4
Neurology (clinical)2022Q4
Physiology (medical)2019Q4
Physiology (medical)2020Q4
Physiology (medical)2021Q4
Physiology (medical)2022Q4
Psychiatry and Mental Health2019Q4
Psychiatry and Mental Health2020Q4
Psychiatry and Mental Health2021Q4
Psychiatry and Mental Health2022Q4
Pulmonary and Respiratory Medicine2019Q4
Pulmonary and Respiratory Medicine2020Q4
Pulmonary and Respiratory Medicine2021Q4
Pulmonary and Respiratory Medicine2022Q4

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)20180.000
Cites / Doc. (4 years)20190.143
Cites / Doc. (4 years)20200.590
Cites / Doc. (4 years)20210.766
Cites / Doc. (4 years)20220.941
Cites / Doc. (3 years)20180.000
Cites / Doc. (3 years)20190.143
Cites / Doc. (3 years)20200.590
Cites / Doc. (3 years)20210.766
Cites / Doc. (3 years)20221.000
Cites / Doc. (2 years)20180.000
Cites / Doc. (2 years)20190.143
Cites / Doc. (2 years)20200.590
Cites / Doc. (2 years)20211.000
Cites / Doc. (2 years)20220.696
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites20180
Self Cites20190
Self Cites20203
Self Cites20215
Self Cites20225
Total Cites20180
Total Cites20193
Total Cites202023
Total Cites202149
Total Cites202264
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document20180
External Cites per document20190.143
External Cites per document20200.513
External Cites per document20210.688
External Cites per document20220.922
Cites per document20180.000
Cites per document20190.143
Cites per document20200.590
Cites per document20210.766
Cites per document20221.000
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents20180
Non-citable documents20190
Non-citable documents20200
Non-citable documents20210
Non-citable documents20220
Citable documents20180
Citable documents201921
Citable documents202039
Citable documents202164
Citable documents202264
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents20180
Uncited documents201919
Uncited documents202025
Uncited documents202139
Uncited documents202238
Cited documents20180
Cited documents20192
Cited documents202014
Cited documents202125
Cited documents202226
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