Scimago Journal & Country Rank

Nihon Geka Gakkai zasshi

H Index
Subject Area and CategoryMedicine
Medicine (miscellaneous)
PublisherNihon Geka Gakkai
Publication typeJournals

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.

Medicine (miscellaneous)1997Q2
Medicine (miscellaneous)1998Q3
Medicine (miscellaneous)1999Q2
Medicine (miscellaneous)2000Q2
Medicine (miscellaneous)2001Q2
Medicine (miscellaneous)2002Q2
Medicine (miscellaneous)2003Q2
Medicine (miscellaneous)2004Q2
Medicine (miscellaneous)2005Q3
Medicine (miscellaneous)2006Q3
Medicine (miscellaneous)2007Q3
Medicine (miscellaneous)2008Q3
Medicine (miscellaneous)2009Q3
Medicine (miscellaneous)2010Q4
Medicine (miscellaneous)2011Q3
Medicine (miscellaneous)2012Q4
Medicine (miscellaneous)2013Q4
Medicine (miscellaneous)2014Q3
Medicine (miscellaneous)2015Q4
Medicine (miscellaneous)2016Q4

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)19990.115
Cites / Doc. (4 years)20000.163
Cites / Doc. (4 years)20010.143
Cites / Doc. (4 years)20020.195
Cites / Doc. (4 years)20030.151
Cites / Doc. (4 years)20040.152
Cites / Doc. (4 years)20050.116
Cites / Doc. (4 years)20060.124
Cites / Doc. (4 years)20070.083
Cites / Doc. (4 years)20080.112
Cites / Doc. (4 years)20090.065
Cites / Doc. (4 years)20100.058
Cites / Doc. (4 years)20110.073
Cites / Doc. (4 years)20120.049
Cites / Doc. (4 years)20130.112
Cites / Doc. (4 years)20140.108
Cites / Doc. (4 years)20150.070
Cites / Doc. (4 years)20160.052
Cites / Doc. (3 years)19990.115
Cites / Doc. (3 years)20000.147
Cites / Doc. (3 years)20010.150
Cites / Doc. (3 years)20020.199
Cites / Doc. (3 years)20030.139
Cites / Doc. (3 years)20040.176
Cites / Doc. (3 years)20050.121
Cites / Doc. (3 years)20060.095
Cites / Doc. (3 years)20070.088
Cites / Doc. (3 years)20080.084
Cites / Doc. (3 years)20090.064
Cites / Doc. (3 years)20100.061
Cites / Doc. (3 years)20110.080
Cites / Doc. (3 years)20120.051
Cites / Doc. (3 years)20130.117
Cites / Doc. (3 years)20140.122
Cites / Doc. (3 years)20150.066
Cites / Doc. (3 years)20160.057
Cites / Doc. (2 years)19990.072
Cites / Doc. (2 years)20000.131
Cites / Doc. (2 years)20010.132
Cites / Doc. (2 years)20020.142
Cites / Doc. (2 years)20030.135
Cites / Doc. (2 years)20040.135
Cites / Doc. (2 years)20050.090
Cites / Doc. (2 years)20060.103
Cites / Doc. (2 years)20070.086
Cites / Doc. (2 years)20080.075
Cites / Doc. (2 years)20090.045
Cites / Doc. (2 years)20100.061
Cites / Doc. (2 years)20110.052
Cites / Doc. (2 years)20120.067
Cites / Doc. (2 years)20130.102
Cites / Doc. (2 years)20140.117
Cites / Doc. (2 years)20150.057
Cites / Doc. (2 years)20160.048
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 Cites19990
Self Cites20000
Self Cites20010
Self Cites20020
Self Cites20030
Self Cites20040
Self Cites20050
Self Cites20060
Self Cites20070
Self Cites20080
Self Cites20090
Self Cites20100
Self Cites20110
Self Cites20120
Self Cites20130
Self Cites20140
Self Cites20150
Self Cites20160
Total Cites199950
Total Cites200055
Total Cites200153
Total Cites200264
Total Cites200349
Total Cites200457
Total Cites200537
Total Cites200627
Total Cites200725
Total Cites200821
Total Cites200915
Total Cites201015
Total Cites201121
Total Cites201213
Total Cites201331
Total Cites201432
Total Cites201517
Total Cites201614
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 document19990.115
External Cites per document20000.147
External Cites per document20010.150
External Cites per document20020.199
External Cites per document20030.139
External Cites per document20040.176
External Cites per document20050.121
External Cites per document20060.095
External Cites per document20070.088
External Cites per document20080.084
External Cites per document20090.064
External Cites per document20100.061
External Cites per document20110.080
External Cites per document20120.051
External Cites per document20130.117
External Cites per document20140.122
External Cites per document20150.066
External Cites per document20160.057
Cites per document19990.115
Cites per document20000.147
Cites per document20010.150
Cites per document20020.199
Cites per document20030.139
Cites per document20040.176
Cites per document20050.121
Cites per document20060.095
Cites per document20070.088
Cites per document20080.084
Cites per document20090.064
Cites per document20100.061
Cites per document20110.080
Cites per document20120.051
Cites per document20130.117
Cites per document20140.122
Cites per document20150.066
Cites per document20160.057
% 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 documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20051
Non-citable documents200612
Non-citable documents200720
Non-citable documents200826
Non-citable documents200924
Non-citable documents201022
Non-citable documents201127
Non-citable documents201234
Non-citable documents201343
Non-citable documents201446
Non-citable documents201544
Non-citable documents201644
Citable documents1999433
Citable documents2000373
Citable documents2001354
Citable documents2002322
Citable documents2003353
Citable documents2004324
Citable documents2005305
Citable documents2006283
Citable documents2007283
Citable documents2008251
Citable documents2009235
Citable documents2010247
Citable documents2011261
Citable documents2012256
Citable documents2013266
Citable documents2014263
Citable documents2015259
Citable documents2016244
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 documents1999394
Uncited documents2000325
Uncited documents2001310
Uncited documents2002272
Uncited documents2003317
Uncited documents2004279
Uncited documents2005274
Uncited documents2006274
Uncited documents2007282
Uncited documents2008258
Uncited documents2009246
Uncited documents2010256
Uncited documents2011272
Uncited documents2012278
Uncited documents2013284
Uncited documents2014286
Uncited documents2015288
Uncited documents2016276
Cited documents199939
Cited documents200048
Cited documents200144
Cited documents200250
Cited documents200336
Cited documents200445
Cited documents200532
Cited documents200621
Cited documents200721
Cited documents200819
Cited documents200913
Cited documents201013
Cited documents201116
Cited documents201212
Cited documents201325
Cited documents201423
Cited documents201515
Cited documents201612
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