Scimago Journal & Country Rank

ERJ Open Researchopen access



Universities and research institutions in Switzerland

Subject Area and Category


European Respiratory Society



Publication type





2015-2018, 2020



How to publish in this journal


ERJ Open Research is a fully open access original research journal, published online by the European Respiratory Society. The journal aims to publish high-quality work in all fields of respiratory science and medicine, covering basic science, clinical translational science and clinical medicine. The journal was created to help fulfil the ERS objective to disseminate scientific and educational material to its members and to the medical community, but also to provide researchers with an affordable open access specialty journal in which to publish their work. 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.

Pulmonary and Respiratory Medicine2016Q3
Pulmonary and Respiratory Medicine2017Q2
Pulmonary and Respiratory Medicine2018Q1
Pulmonary and Respiratory Medicine2019Q1
Pulmonary and Respiratory Medicine2020Q3

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)20150.000
Cites / Doc. (4 years)20161.206
Cites / Doc. (4 years)20171.844
Cites / Doc. (4 years)20182.752
Cites / Doc. (4 years)20192.308
Cites / Doc. (4 years)20202.343
Cites / Doc. (3 years)20150.000
Cites / Doc. (3 years)20161.206
Cites / Doc. (3 years)20171.844
Cites / Doc. (3 years)20182.752
Cites / Doc. (3 years)20192.557
Cites / Doc. (3 years)20201.125
Cites / Doc. (2 years)20150.000
Cites / Doc. (2 years)20161.206
Cites / Doc. (2 years)20171.844
Cites / Doc. (2 years)20183.015
Cites / Doc. (2 years)20191.875
Cites / Doc. (2 years)20201.000
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 Cites20150
Self Cites20162
Self Cites20172
Self Cites20180
Self Cites20190
Self Cites20200
Total Cites20150
Total Cites201641
Total Cites2017177
Total Cites2018278
Total Cites2019179
Total Cites20209
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 document20150
External Cites per document20161.857
External Cites per document20172.397
External Cites per document20183.610
External Cites per document20193.086
External Cites per document20201.500
Cites per document20150.000
Cites per document20161.206
Cites per document20171.844
Cites per document20182.752
Cites per document20192.557
Cites per document20201.125
% 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 documents20150
Non-citable documents201613
Non-citable documents201723
Non-citable documents201824
Non-citable documents201912
Non-citable documents20202
Citable documents20150
Citable documents201621
Citable documents201773
Citable documents201877
Citable documents201958
Citable documents20206
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 documents20150
Uncited documents201618
Uncited documents201740
Uncited documents201828
Uncited documents201920
Uncited documents20204
Cited documents20150
Cited documents201616
Cited documents201756
Cited documents201873
Cited documents201950
Cited documents20204
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Metrics based on Scopus® data as of April 2021
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The users of Scimago Journal & Country Rank have the possibility to dialogue through comments linked to a specific journal. The purpose is to have a forum in which general doubts about the processes of publication in the journal, experiences and other issues derived from the publication of papers are resolved. For topics on particular articles, maintain the dialogue through the usual channels with your editor.

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