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88 374 medicine
62 710 materials science
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55 657 02 engineering and technology
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52 325 biology
47 140 computer science
42 915 03 medical and health sciences
41 079 medicine.disease
40 586 general medicine
36 563 medicine.medical_specialty
34 737 apoptosis
34 432 animals
33 771 male
32 828 artificial intelligence
32 075 gene expression
31 384 female
30 789 law
30 531 0302 clinical medicine
30 347 china
30 336 law.invention
29 612 biochemistry
28 387 0210 nano-technology
28 387 021001 nanoscience & nanotechnology
25 580 machine learning
25 206 general chemistry
24 926 cancer
24 660 condensed matter physics
24 559 general materials science
24 373 nanoparticles
24 367 deep learning
23 929 0301 basic medicine
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23 625 0104 chemical sciences
22 970 engineering
22 931 030104 developmental biology
21 906 mice
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21 142 chemistry.chemical_element
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20 896 covid-19
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20 773 inflammation
20 385 physics
19 642 0202 electrical engineering, electronic engineering, information engineering

277 240 wiley-blackwell
265 556 springer nature
242 730 mdpi
141 308 elsevier b.v.
108 136 ieee
88 807 taylor & francis ltd
84 920 royal society of chemistry
69 559 springer
60 051 biomed central
49 548 frontiers media s.a.
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42 055 wiley
39 423 elsevier
33 865 iop publishing
28 740 public library of science
26 953 oxford university press / usa
22 160 american chemical society
21 692 wiley-vch
21 564 lippincott williams & wilkins
21 492 sage publications inc.
17 573 mdpi ag
15 843 elsevier sci ltd
15 271 frontiers media sa
14 899 pergamon-elsevier science ltd
13 489 elsevier science bv
13 406 bmc
11 006 routledge
10 745 nature publishing group
9 668 association for computing machinery
9 153 ios press
9 033 de gruyter
8 451 cambridge university press
6 797 science press
6 543 emerald publishing limited
5 330 edp sciences
4 703 american society of civil engineers
4 696 oxford university press
4 534 sage publications, ltd.
3 721 cell press
3 546 biomed central ltd
3 319 bmj publishing group
3 139 sage publications ltd
2 718 trans tech publications ltd
2 709 world scientific
2 573 american physical society
2 528 brill
1 411 csiro publishing
1 347 university of chicago press
823 routledge journals, taylor & francis ltd
820 wolters kluwer health

31 289 plos one
27 398 international journal of molecular sciences
25 517 scientific reports
15 771 molecules
13 905 rsc advances
13 860 remote sensing
10 804 advanced materials research
9 157 nature communications
8 785 advanced functional materials
8 733 chemical communications
7 909 applied mechanics and materials
7 706 advanced science
7 702 applied physics letters
7 127 science of the total environment
7 081 frontiers in oncology
6 685 medicine
6 592 frontiers in pharmacology
6 554 frontiers in immunology
6 527 chemical engineering journal
5 523 frontiers in microbiology
5 493 frontiers in plant science
4 838 molecular medicine reports
4 723 journal of alloys and compounds
4 631 oncology letters
4 628 ieee access
4 362 applied surface science
4 343 biomed research international
4 157 proceedings of the national academy of sciences of the united states of america
3 920 ceramics international
3 919 journal of the american chemical society
3 903 bmc genomics
3 846 journal of cleaner production
3 707 chemosphere
3 629 international journal of biological macromolecules
3 405 frontiers in genetics
3 243 journal of hazardous materials
2 946 materials letters
2 855 chinese medical journal
2 778 environmental pollution
2 579 biochemical and biophysical research communications
2 464 journal of biological chemistry
2 306 bioresource technology
2 249 applied thermal engineering
2 227 nature
2 217 environmental science & technology
1 989 international immunopharmacology
1 944 applied energy
1 678 ecotoxicology and environmental safety
1 158 journal of environmental management
994 library journal

1 163 672 Complementary Index
457 439 Academic Search Ultimate
437 902 OpenAIRE
335 687 Science Citation Index Expanded
221 118 eBook Index
166 493 Scopus®
131 097 MEDLINE
102 704 ScienceDirect
97 007 Supplemental Index
65 903 Directory of Open Access Journals
44 657 Business Source Ultimate
21 087 eBook Collection (EBSCOhost)
16 404 arXiv
13 084 Social Sciences Citation Index
8 358 Networked Digital Library of Theses & Dissertations
8 354 GreenFILE
6 570 Regional Business News
4 440 JSTOR Journals
2 085 Emerald Insight
1 216 Vybrané kolekce e-knih
977 Library, Information Science & Technology Abstracts
948 Arts & Humanities Citation Index
522 NORA (Norwegian Open Research Archive)
421 SAGE Knowledge
198 Oxford Reference
168 BrillOnline Reference Works
113 Oxford Scholarship Online
108 Research Starters
101 Central and Eastern European Online Library (CEEOL)
89 Brill E-Book Collection
66 Digitalni knihovny ČR
64 Britannica Online
59 Katalog Knihovny AV ČR
56 SAGE Research Methods
22 SSOAR – Social Science Open Access Repository
15 Manuscriptorium Digital Library
13 E-LIS (Eprints in Library & Information Science)
12 OAPEN Library
1 Digitální knihovna AV ČR – Kramerius

68 031 china
8 880 united states
4 495 taiwan
2 776 india
2 223 hong kong (china)
2 117 asia
2 074 japan
1 734 shanghai (china)
1 511 vietnam
311 arctic regions

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