Scimago Journal & Country Rank

Placenta

Country

United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category

Publisher

W.B. Saunders Ltd

H-Index

124

Publication type

Journals

ISSN

01434004, 15323102

Coverage

1970, 1977, 1980-2020

Information

Homepage

How to publish in this journal

Contact

Scope

Placenta publishes high-quality original articles and invited topical reviews on all aspects of human and animal placentation, and the interactions between the mother, the placenta and fetal development. Topics covered include evolution, development, genetics and epigenetics, stem cells, metabolism, transport, immunology, pathology, pharmacology, cell and molecular biology, and developmental programming. The Editors welcome studies on implantation and the endometrium, comparative placentation, the uterine and umbilical circulations, the relationship between fetal and placental development, clinical aspects of altered placental development or function, the placental membranes, the influence of paternal factors on placental development or function, and the assessment of biomarkers of placental disorders. Join the conversation about this journal
Quartiles

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.

CategoryYearQuartile
Developmental Biology1999Q2
Developmental Biology2000Q2
Developmental Biology2001Q2
Developmental Biology2002Q2
Developmental Biology2003Q2
Developmental Biology2004Q2
Developmental Biology2005Q2
Developmental Biology2006Q2
Developmental Biology2007Q2
Developmental Biology2008Q2
Developmental Biology2009Q2
Developmental Biology2010Q2
Developmental Biology2011Q2
Developmental Biology2012Q2
Developmental Biology2013Q2
Developmental Biology2014Q2
Developmental Biology2015Q2
Developmental Biology2016Q2
Developmental Biology2017Q2
Developmental Biology2018Q2
Developmental Biology2019Q2
Developmental Biology2020Q2
Obstetrics and Gynecology1999Q1
Obstetrics and Gynecology2000Q1
Obstetrics and Gynecology2001Q1
Obstetrics and Gynecology2002Q1
Obstetrics and Gynecology2003Q1
Obstetrics and Gynecology2004Q1
Obstetrics and Gynecology2005Q1
Obstetrics and Gynecology2006Q1
Obstetrics and Gynecology2007Q1
Obstetrics and Gynecology2008Q1
Obstetrics and Gynecology2009Q1
Obstetrics and Gynecology2010Q1
Obstetrics and Gynecology2011Q1
Obstetrics and Gynecology2012Q1
Obstetrics and Gynecology2013Q1
Obstetrics and Gynecology2014Q1
Obstetrics and Gynecology2015Q1
Obstetrics and Gynecology2016Q1
Obstetrics and Gynecology2017Q1
Obstetrics and Gynecology2018Q1
Obstetrics and Gynecology2019Q1
Obstetrics and Gynecology2020Q1
Reproductive Medicine1999Q1
Reproductive Medicine2000Q1
Reproductive Medicine2001Q1
Reproductive Medicine2002Q1
Reproductive Medicine2003Q1
Reproductive Medicine2004Q1
Reproductive Medicine2005Q1
Reproductive Medicine2006Q1
Reproductive Medicine2007Q1
Reproductive Medicine2008Q1
Reproductive Medicine2009Q1
Reproductive Medicine2010Q1
Reproductive Medicine2011Q1
Reproductive Medicine2012Q1
Reproductive Medicine2013Q1
Reproductive Medicine2014Q1
Reproductive Medicine2015Q1
Reproductive Medicine2016Q1
Reproductive Medicine2017Q1
Reproductive Medicine2018Q1
Reproductive Medicine2019Q1
Reproductive Medicine2020Q1
SJR

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.

YearSJR
19990.799
20000.916
20010.883
20020.885
20031.009
20041.247
20051.489
20061.546
20071.329
20081.225
20091.161
20101.323
20111.432
20121.411
20131.670
20141.422
20151.627
20161.423
20171.223
20181.232
20191.147
20201.259
Total Documents

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

YearDocuments
199988
2000138
2001135
2002116
2003163
2004125
2005123
2006160
2007186
2008175
2009174
2010188
2011227
2012204
2013217
2014188
2015215
2016189
2017242
2018147
2019134
2020216
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)19991.803
Cites / Doc. (4 years)20002.316
Cites / Doc. (4 years)20012.386
Cites / Doc. (4 years)20022.265
Cites / Doc. (4 years)20032.847
Cites / Doc. (4 years)20042.795
Cites / Doc. (4 years)20052.844
Cites / Doc. (4 years)20063.529
Cites / Doc. (4 years)20073.231
Cites / Doc. (4 years)20082.985
Cites / Doc. (4 years)20093.059
Cites / Doc. (4 years)20103.273
Cites / Doc. (4 years)20113.568
Cites / Doc. (4 years)20123.747
Cites / Doc. (4 years)20133.830
Cites / Doc. (4 years)20143.246
Cites / Doc. (4 years)20153.441
Cites / Doc. (4 years)20163.100
Cites / Doc. (4 years)20172.823
Cites / Doc. (4 years)20183.061
Cites / Doc. (4 years)20192.893
Cites / Doc. (4 years)20203.486
Cites / Doc. (3 years)19991.803
Cites / Doc. (3 years)20002.145
Cites / Doc. (3 years)20012.333
Cites / Doc. (3 years)20022.382
Cites / Doc. (3 years)20032.889
Cites / Doc. (3 years)20042.843
Cites / Doc. (3 years)20053.084
Cites / Doc. (3 years)20063.331
Cites / Doc. (3 years)20073.199
Cites / Doc. (3 years)20083.023
Cites / Doc. (3 years)20092.960
Cites / Doc. (3 years)20103.191
Cites / Doc. (3 years)20113.752
Cites / Doc. (3 years)20123.747
Cites / Doc. (3 years)20133.704
Cites / Doc. (3 years)20143.117
Cites / Doc. (3 years)20153.381
Cites / Doc. (3 years)20162.997
Cites / Doc. (3 years)20172.796
Cites / Doc. (3 years)20182.875
Cites / Doc. (3 years)20192.851
Cites / Doc. (3 years)20203.524
Cites / Doc. (2 years)19991.560
Cites / Doc. (2 years)20002.128
Cites / Doc. (2 years)20012.478
Cites / Doc. (2 years)20022.293
Cites / Doc. (2 years)20032.741
Cites / Doc. (2 years)20042.867
Cites / Doc. (2 years)20052.813
Cites / Doc. (2 years)20063.008
Cites / Doc. (2 years)20073.177
Cites / Doc. (2 years)20082.829
Cites / Doc. (2 years)20092.864
Cites / Doc. (2 years)20103.238
Cites / Doc. (2 years)20113.848
Cites / Doc. (2 years)20123.518
Cites / Doc. (2 years)20133.371
Cites / Doc. (2 years)20142.924
Cites / Doc. (2 years)20153.294
Cites / Doc. (2 years)20162.856
Cites / Doc. (2 years)20172.322
Cites / Doc. (2 years)20182.729
Cites / Doc. (2 years)20192.961
Cites / Doc. (2 years)20202.932
Total Cites 
Self-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.

CitesYearValue
Self Cites199975
Self Cites2000154
Self Cites2001152
Self Cites2002143
Self Cites2003191
Self Cites2004159
Self Cites2005150
Self Cites2006185
Self Cites2007201
Self Cites2008182
Self Cites2009231
Self Cites2010227
Self Cites2011247
Self Cites2012281
Self Cites2013276
Self Cites2014222
Self Cites2015220
Self Cites2016184
Self Cites2017211
Self Cites2018125
Self Cites201972
Self Cites2020165
Total Cites1999532
Total Cites2000637
Total Cites2001777
Total Cites2002860
Total Cites20031124
Total Cites20041177
Total Cites20051246
Total Cites20061369
Total Cites20071305
Total Cites20081418
Total Cites20091542
Total Cites20101707
Total Cites20112015
Total Cites20122207
Total Cites20132293
Total Cites20142020
Total Cites20152059
Total Cites20161858
Total Cites20171655
Total Cites20181857
Total Cites20191648
Total Cites20201843
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.

CitesYearValue
External Cites per document19991.626
External Cites per document20001.695
External Cites per document20011.941
External Cites per document20022.060
External Cites per document20032.508
External Cites per document20042.604
External Cites per document20052.862
External Cites per document20063.059
External Cites per document20072.838
External Cites per document20082.759
External Cites per document20092.622
External Cites per document20102.902
External Cites per document20113.494
External Cites per document20123.495
External Cites per document20133.508
External Cites per document20142.938
External Cites per document20153.144
External Cites per document20162.762
External Cites per document20172.503
External Cites per document20182.767
External Cites per document20192.814
External Cites per document20203.303
Cites per document19991.803
Cites per document20002.145
Cites per document20012.333
Cites per document20022.382
Cites per document20032.889
Cites per document20042.843
Cites per document20053.084
Cites per document20063.331
Cites per document20073.199
Cites per document20083.023
Cites per document20092.960
Cites per document20103.191
Cites per document20113.752
Cites per document20123.747
Cites per document20133.704
Cites per document20143.117
Cites per document20153.381
Cites per document20162.997
Cites per document20172.796
Cites per document20182.875
Cites per document20192.851
Cites per document20203.524
% 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
199912.50
200024.64
200123.70
200228.45
200323.93
200436.80
200526.83
200629.38
200729.03
200825.71
200921.26
201026.06
201132.60
201223.04
201323.96
201429.26
201526.51
201625.40
201723.97
201829.25
201927.61
202021.76
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.

DocumentsYearValue
Non-citable documents199914
Non-citable documents200012
Non-citable documents200111
Non-citable documents200213
Non-citable documents200317
Non-citable documents200423
Non-citable documents200521
Non-citable documents200624
Non-citable documents200719
Non-citable documents200821
Non-citable documents200921
Non-citable documents201025
Non-citable documents201131
Non-citable documents201238
Non-citable documents201344
Non-citable documents201436
Non-citable documents201524
Non-citable documents201614
Non-citable documents201715
Non-citable documents201820
Non-citable documents201918
Non-citable documents202015
Citable documents1999281
Citable documents2000285
Citable documents2001322
Citable documents2002348
Citable documents2003372
Citable documents2004391
Citable documents2005383
Citable documents2006387
Citable documents2007389
Citable documents2008448
Citable documents2009500
Citable documents2010510
Citable documents2011506
Citable documents2012551
Citable documents2013575
Citable documents2014612
Citable documents2015585
Citable documents2016606
Citable documents2017577
Citable documents2018626
Citable documents2019560
Citable documents2020508
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.

DocumentsYearValue
Uncited documents1999110
Uncited documents200086
Uncited documents200193
Uncited documents200292
Uncited documents200381
Uncited documents200490
Uncited documents200593
Uncited documents200686
Uncited documents200793
Uncited documents200895
Uncited documents200998
Uncited documents201080
Uncited documents201182
Uncited documents201297
Uncited documents2013113
Uncited documents2014121
Uncited documents2015121
Uncited documents2016117
Uncited documents2017122
Uncited documents2018135
Uncited documents2019136
Uncited documents202098
Cited documents1999185
Cited documents2000211
Cited documents2001240
Cited documents2002269
Cited documents2003308
Cited documents2004324
Cited documents2005311
Cited documents2006325
Cited documents2007315
Cited documents2008374
Cited documents2009423
Cited documents2010455
Cited documents2011455
Cited documents2012492
Cited documents2013506
Cited documents2014527
Cited documents2015488
Cited documents2016503
Cited documents2017470
Cited documents2018511
Cited documents2019442
Cited documents2020425
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Metrics based on Scopus® data as of April 2021
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