Scimago Journal & Country Rank


Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryMedicine
Cardiology and Cardiovascular Medicine
Physiology (medical)
PublisherLippincott Williams & Wilkins Ltd.
Publication typeJournals
ISSN15244539, 00097322
Scope Under the leadership of Editor-in-Chief, Joseph Loscalzo, Circulation publishes the most important papers from across the world of cardiology every week. Online subscriptions are available to members of the American Heart Association/American Stroke Association as a benefit of membership depending on membership level. Members may also qualify for special rates on print subscriptions.


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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.

Cardiology and Cardiovascular Medicine1999Q1
Cardiology and Cardiovascular Medicine2000Q1
Cardiology and Cardiovascular Medicine2001Q1
Cardiology and Cardiovascular Medicine2002Q1
Cardiology and Cardiovascular Medicine2003Q1
Cardiology and Cardiovascular Medicine2004Q1
Cardiology and Cardiovascular Medicine2005Q1
Cardiology and Cardiovascular Medicine2006Q1
Cardiology and Cardiovascular Medicine2007Q1
Cardiology and Cardiovascular Medicine2008Q1
Cardiology and Cardiovascular Medicine2009Q1
Cardiology and Cardiovascular Medicine2010Q1
Cardiology and Cardiovascular Medicine2011Q1
Cardiology and Cardiovascular Medicine2012Q1
Cardiology and Cardiovascular Medicine2013Q1
Cardiology and Cardiovascular Medicine2014Q1
Cardiology and Cardiovascular Medicine2015Q1
Cardiology and Cardiovascular Medicine2016Q1
Cardiology and Cardiovascular Medicine2017Q1
Physiology (medical)1999Q1
Physiology (medical)2000Q1
Physiology (medical)2001Q1
Physiology (medical)2002Q1
Physiology (medical)2003Q1
Physiology (medical)2004Q1
Physiology (medical)2005Q1
Physiology (medical)2006Q1
Physiology (medical)2007Q1
Physiology (medical)2008Q1
Physiology (medical)2009Q1
Physiology (medical)2010Q1
Physiology (medical)2011Q1
Physiology (medical)2012Q1
Physiology (medical)2013Q1
Physiology (medical)2014Q1
Physiology (medical)2015Q1
Physiology (medical)2016Q1
Physiology (medical)2017Q1

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.

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)19998.558
Cites / Doc. (4 years)200010.197
Cites / Doc. (4 years)200110.668
Cites / Doc. (4 years)200210.792
Cites / Doc. (4 years)200311.389
Cites / Doc. (4 years)200412.275
Cites / Doc. (4 years)200513.013
Cites / Doc. (4 years)200613.627
Cites / Doc. (4 years)200713.223
Cites / Doc. (4 years)200812.332
Cites / Doc. (4 years)200913.050
Cites / Doc. (4 years)201013.254
Cites / Doc. (4 years)201114.006
Cites / Doc. (4 years)201214.794
Cites / Doc. (4 years)201315.066
Cites / Doc. (4 years)201415.051
Cites / Doc. (4 years)201514.780
Cites / Doc. (4 years)201614.522
Cites / Doc. (4 years)201714.479
Cites / Doc. (3 years)19998.558
Cites / Doc. (3 years)200010.040
Cites / Doc. (3 years)200110.644
Cites / Doc. (3 years)200210.498
Cites / Doc. (3 years)200311.153
Cites / Doc. (3 years)200412.681
Cites / Doc. (3 years)200513.264
Cites / Doc. (3 years)200613.081
Cites / Doc. (3 years)200712.543
Cites / Doc. (3 years)200811.836
Cites / Doc. (3 years)200912.911
Cites / Doc. (3 years)201013.220
Cites / Doc. (3 years)201113.854
Cites / Doc. (3 years)201215.194
Cites / Doc. (3 years)201315.120
Cites / Doc. (3 years)201414.529
Cites / Doc. (3 years)201514.693
Cites / Doc. (3 years)201615.184
Cites / Doc. (3 years)201715.194
Cites / Doc. (2 years)19998.065
Cites / Doc. (2 years)20009.718
Cites / Doc. (2 years)20019.798
Cites / Doc. (2 years)20029.652
Cites / Doc. (2 years)200311.084
Cites / Doc. (2 years)200412.780
Cites / Doc. (2 years)200512.407
Cites / Doc. (2 years)200611.814
Cites / Doc. (2 years)200711.510
Cites / Doc. (2 years)200811.130
Cites / Doc. (2 years)200912.477
Cites / Doc. (2 years)201012.562
Cites / Doc. (2 years)201113.806
Cites / Doc. (2 years)201215.112
Cites / Doc. (2 years)201314.276
Cites / Doc. (2 years)201413.790
Cites / Doc. (2 years)201515.218
Cites / Doc. (2 years)201615.806
Cites / Doc. (2 years)201714.285
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 Cites19991575
Self Cites20001971
Self Cites20012295
Self Cites20022362
Self Cites20032621
Self Cites20042820
Self Cites20052455
Self Cites20062041
Self Cites20071604
Self Cites20081287
Self Cites20091134
Self Cites20101299
Self Cites20111443
Self Cites20121306
Self Cites20131120
Self Cites20141011
Self Cites2015716
Self Cites2016895
Self Cites2017600
Total Cites199922885
Total Cites200028625
Total Cites200132614
Total Cites200235568
Total Cites200339628
Total Cites200444625
Total Cites200548029
Total Cites200647472
Total Cites200743210
Total Cites200837152
Total Cites200936048
Total Cites201033712
Total Cites201131532
Total Cites201233229
Total Cites201332855
Total Cites201430047
Total Cites201527976
Total Cites201624993
Total Cites201723703
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 document19997.969
External Cites per document20009.349
External Cites per document20019.895
External Cites per document20029.801
External Cites per document200310.416
External Cites per document200411.880
External Cites per document200512.586
External Cites per document200612.519
External Cites per document200712.077
External Cites per document200811.426
External Cites per document200912.505
External Cites per document201012.711
External Cites per document201113.220
External Cites per document201214.597
External Cites per document201314.604
External Cites per document201414.041
External Cites per document201514.317
External Cites per document201614.640
External Cites per document201714.810
Cites per document19998.558
Cites per document200010.040
Cites per document200110.644
Cites per document200210.498
Cites per document200311.153
Cites per document200412.681
Cites per document200513.264
Cites per document200613.081
Cites per document200712.543
Cites per document200811.836
Cites per document200912.911
Cites per document201013.220
Cites per document201113.854
Cites per document201215.194
Cites per document201315.120
Cites per document201414.529
Cites per document201514.693
Cites per document201615.184
Cites per document201715.194
% 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 documents1999693
Non-citable documents2000697
Non-citable documents2001609
Non-citable documents2002596
Non-citable documents2003651
Non-citable documents2004713
Non-citable documents2005715
Non-citable documents2006716
Non-citable documents2007761
Non-citable documents2008855
Non-citable documents2009873
Non-citable documents2010888
Non-citable documents2011916
Non-citable documents2012991
Non-citable documents20131071
Non-citable documents20141097
Non-citable documents20151131
Non-citable documents20161160
Non-citable documents20171159
Citable documents19992674
Citable documents20002851
Citable documents20013064
Citable documents20023388
Citable documents20033553
Citable documents20043519
Citable documents20053621
Citable documents20063629
Citable documents20073445
Citable documents20083139
Citable documents20092792
Citable documents20102550
Citable documents20112276
Citable documents20122187
Citable documents20132173
Citable documents20142068
Citable documents20151904
Citable documents20161646
Citable documents20171560
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 documents1999734
Uncited documents2000732
Uncited documents2001774
Uncited documents2002754
Uncited documents2003763
Uncited documents2004701
Uncited documents2005716
Uncited documents2006737
Uncited documents2007933
Uncited documents20081109
Uncited documents20091160
Uncited documents20101065
Uncited documents2011930
Uncited documents2012998
Uncited documents20131056
Uncited documents20141037
Uncited documents20151035
Uncited documents20161056
Uncited documents20171085
Cited documents19992633
Cited documents20002816
Cited documents20012899
Cited documents20023230
Cited documents20033441
Cited documents20043531
Cited documents20053620
Cited documents20063608
Cited documents20073273
Cited documents20082885
Cited documents20092505
Cited documents20102373
Cited documents20112262
Cited documents20122180
Cited documents20132188
Cited documents20142128
Cited documents20152000
Cited documents20161750
Cited documents20171634
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