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
ISSN00097322, 15244539
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
Cardiology and Cardiovascular Medicine2018Q1
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
Physiology (medical)2018Q1

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)19998.678
Cites / Doc. (4 years)200010.293
Cites / Doc. (4 years)200110.821
Cites / Doc. (4 years)200210.916
Cites / Doc. (4 years)200311.478
Cites / Doc. (4 years)200412.490
Cites / Doc. (4 years)200513.217
Cites / Doc. (4 years)200612.982
Cites / Doc. (4 years)200712.562
Cites / Doc. (4 years)200811.595
Cites / Doc. (4 years)200912.334
Cites / Doc. (4 years)201013.474
Cites / Doc. (4 years)201114.190
Cites / Doc. (4 years)201214.961
Cites / Doc. (4 years)201315.238
Cites / Doc. (4 years)201415.133
Cites / Doc. (4 years)201514.905
Cites / Doc. (4 years)201614.844
Cites / Doc. (4 years)201715.423
Cites / Doc. (4 years)201815.307
Cites / Doc. (3 years)19998.678
Cites / Doc. (3 years)200010.139
Cites / Doc. (3 years)200110.779
Cites / Doc. (3 years)200210.586
Cites / Doc. (3 years)200311.240
Cites / Doc. (3 years)200412.904
Cites / Doc. (3 years)200513.477
Cites / Doc. (3 years)200612.459
Cites / Doc. (3 years)200711.918
Cites / Doc. (3 years)200811.132
Cites / Doc. (3 years)200912.197
Cites / Doc. (3 years)201013.390
Cites / Doc. (3 years)201114.018
Cites / Doc. (3 years)201215.327
Cites / Doc. (3 years)201315.215
Cites / Doc. (3 years)201414.601
Cites / Doc. (3 years)201514.844
Cites / Doc. (3 years)201615.539
Cites / Doc. (3 years)201716.170
Cites / Doc. (3 years)201814.985
Cites / Doc. (2 years)19998.189
Cites / Doc. (2 years)20009.803
Cites / Doc. (2 years)20019.897
Cites / Doc. (2 years)20029.722
Cites / Doc. (2 years)200311.165
Cites / Doc. (2 years)200413.022
Cites / Doc. (2 years)200512.586
Cites / Doc. (2 years)200611.231
Cites / Doc. (2 years)200710.948
Cites / Doc. (2 years)200810.497
Cites / Doc. (2 years)200911.738
Cites / Doc. (2 years)201012.725
Cites / Doc. (2 years)201113.961
Cites / Doc. (2 years)201215.171
Cites / Doc. (2 years)201314.354
Cites / Doc. (2 years)201413.869
Cites / Doc. (2 years)201515.402
Cites / Doc. (2 years)201616.195
Cites / Doc. (2 years)201715.215
Cites / Doc. (2 years)201814.436
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 Cites20001970
Self Cites20012295
Self Cites20022369
Self Cites20032620
Self Cites20042822
Self Cites20052455
Self Cites20061880
Self Cites20071507
Self Cites20081172
Self Cites20091026
Self Cites20101229
Self Cites20111397
Self Cites20121289
Self Cites20131120
Self Cites20141002
Self Cites2015723
Self Cites2016900
Self Cites2017715
Self Cites2018362
Total Cites199922919
Total Cites200028593
Total Cites200132779
Total Cites200235740
Total Cites200339766
Total Cites200445152
Total Cites200548462
Total Cites200644952
Total Cites200740067
Total Cites200833541
Total Cites200931994
Total Cites201032270
Total Cites201130630
Total Cites201232846
Total Cites201333017
Total Cites201430152
Total Cites201528070
Total Cites201625578
Total Cites201725274
Total Cites201823646
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 document19998.082
External Cites per document20009.441
External Cites per document200110.024
External Cites per document20029.885
External Cites per document200310.499
External Cites per document200412.098
External Cites per document200512.794
External Cites per document200611.938
External Cites per document200711.469
External Cites per document200810.743
External Cites per document200911.806
External Cites per document201012.880
External Cites per document201113.379
External Cites per document201214.726
External Cites per document201314.699
External Cites per document201414.116
External Cites per document201514.462
External Cites per document201614.993
External Cites per document201715.713
External Cites per document201814.755
Cites per document19998.678
Cites per document200010.139
Cites per document200110.779
Cites per document200210.586
Cites per document200311.240
Cites per document200412.904
Cites per document200513.477
Cites per document200612.459
Cites per document200711.918
Cites per document200811.132
Cites per document200912.197
Cites per document201013.390
Cites per document201114.018
Cites per document201215.327
Cites per document201315.215
Cites per document201414.601
Cites per document201514.844
Cites per document201615.539
Cites per document201716.170
Cites per document201814.985
% 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 documents2003652
Non-citable documents2004714
Non-citable documents2005716
Non-citable documents2006716
Non-citable documents2007728
Non-citable documents2008807
Non-citable documents2009812
Non-citable documents2010855
Non-citable documents2011898
Non-citable documents2012982
Non-citable documents20131067
Non-citable documents20141092
Non-citable documents20151129
Non-citable documents20161159
Non-citable documents20171161
Non-citable documents20181061
Citable documents19992641
Citable documents20002820
Citable documents20013041
Citable documents20023376
Citable documents20033538
Citable documents20043499
Citable documents20053596
Citable documents20063608
Citable documents20073362
Citable documents20083013
Citable documents20092623
Citable documents20102410
Citable documents20112185
Citable documents20122143
Citable documents20132170
Citable documents20142065
Citable documents20151891
Citable documents20161646
Citable documents20171563
Citable documents20181578
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 documents1999702
Uncited documents2000704
Uncited documents2001752
Uncited documents2002741
Uncited documents2003747
Uncited documents2004679
Uncited documents2005691
Uncited documents2006729
Uncited documents2007895
Uncited documents20081068
Uncited documents20091086
Uncited documents20101009
Uncited documents2011896
Uncited documents2012980
Uncited documents20131047
Uncited documents20141025
Uncited documents20151029
Uncited documents20161051
Uncited documents20171070
Uncited documents20181070
Cited documents19992632
Cited documents20002813
Cited documents20012898
Cited documents20023231
Cited documents20033443
Cited documents20043534
Cited documents20053621
Cited documents20063595
Cited documents20073195
Cited documents20082752
Cited documents20092349
Cited documents20102256
Cited documents20112187
Cited documents20122145
Cited documents20132190
Cited documents20142132
Cited documents20151991
Cited documents20161754
Cited documents20171654
Cited documents20181569
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