Content Provider
ScienceDirect (Elsevier - via Crossref)
3,235
Springer Nature (via Crossref)
2,874
Informa (via Crossref)
1,746
ScienceDirect (Elsevier)
1,627
Canadian Science Publishing (via Crossref)
1,017
Wiley Online Library (via Crossref)
638
Informa
560
The Royal Society (via Crossref)
474
Oxford University Press (via Crossref)
377
IOP Publishing (via Crossref)
356
Cambridge University Press
323
SAGE Publications (via Crossref)
289
The Royal Society
257
JSTOR (via Crossref)
249
Wiley Online Library
247
PeerJ Publishing
208
The BMJ
177
Scandinavian University Press (via Crossref)
138
Oxford University Press
132
PeerJ Publishing (via CrossRef)
119
AMA (via Crossref)
112
The BMJ (via Crossref)
110
Canadian Science Publishing
95
Johns Hopkins University Press (via Crossref)
93
Cambridge University Press (via Crossref)
92
Unknown
89
SAGE Publications
88
Brill (via Crossref)
82
Canadian Public Health Association (via Crossref)
78
Johns Hopkins University Press
75
Stockholm University Press (via Crossref)
73
IMF Publications (International Monetary Fund - via Crossref)
70
Scientific Research Publishing (SCIRP Open Access - via Crossref)
70
Ovid (via Crossref)
66
Bioscientifica (via Crossref)
63
AMPCo (Australasian Medical Publishing Company - via Crossref)
57
Frontiers (Publisher)
53
De Gruyter (via Crossref)
52
OECD iLibrary (via Crossref)
51
University of California Press (via Crossref)
46
ACS Publications (via Crossref)
44
IOP Publishing
40
University of Toronto Press (U Toronto Press - via Crossref)
32
Royal Society of Chemistry
31
Hans Publishers (via Crossref)
27
Karger (via Crossref)
23
The University of Queensland: UQ eSpace
23
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
21
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
20
Schweizerbart Science Publishers (via Crossref)
19
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