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Resource Type
Academic Journals
280,415
Reports
16,918
Electronic Resources
16,472
Magazines
11,240
Books
9,268
Conference Materials
5,450
more ...
Dissertations
4,573
Non-Print Resources
2,994
Trade Publications
1,412
eBooks
812
Reviews
740
Videos
94
News
90
Primary Source Documents
67
Audio
37
Patents
16
Maps
1
Literature Reviews
1
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Subject
data collection
216,579
humans
91,305
03 medical and health sciences
62,399
0302 clinical medicine
56,275
3. good health
50,371
female
46,325
more ...
male
41,476
adult
29,927
united states
27,944
human
23,043
middle aged
22,668
adolescent
17,422
erhebungstechniken und analysetechniken der sozialwissenschaften
16,443
aged
16,092
public health surveillance
13,328
adulthood (18 yrs & older)
13,315
disease notification
12,937
communicable diseases/epidemiology
12,893
surveys and questionnaires
12,599
sociology
12,499
0305 other medical science
12,464
05 social sciences
12,454
research design
12,216
social sciences
10,346
child
10,129
automatic data collection systems
9,318
4. education
8,811
statistical methods
8,434
methods and techniques of data collection and data analysis
8,405
computer methods
8,339
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Published in
modern healthcare
2,742
federal register (national archives & records service, office of the federal register)
2,038
plos one
1,987
american journal of public health
1,316
american journal of preventive medicine
991
medical care
948
more ...
american journal of epidemiology
908
journal of medical internet research
814
pediatrics
783
behavior research methods
699
journal of general internal medicine
667
bmc public health
645
sensors
640
journal of clinical epidemiology
592
international journal of environmental research and public health
543
ieee access
507
bmc medical research methodology
503
drug and alcohol dependence
487
american journal of health-system pharmacy
476
bmc health services research
473
australian and new zealand journal of public health
442
journal of the american geriatrics society
440
vaccine
439
bulletin of the world health organization
410
journal of school health
375
bmj open
362
aids and behavior
314
international journal of medical informatics
288
trials
277
scientific reports
275
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Publisher
deu
14,722
wiley
11,014
sage publications
9,464
elsevier
7,187
lippincott williams & wilkins
5,066
springer
4,940
more ...
elsevier science
4,667
oxford university press
4,613
taylor & francis
4,068
wiley-blackwell
2,754
biomed central
2,453
national archives & records service, office of the federal register
2,038
blackwell publishing
2,030
escholarship, university of california
1,978
mdpi ag
1,735
american psychological association
1,549
world health organization
1,535
cambridge university press
1,516
mdpi
1,498
american public health association
1,266
public library of science
1,170
taylor & francis ltd
1,131
routledge
1,089
elsevier b.v.
1,067
ios press
1,028
springer nature
1,003
ieee
936
gesis - leibniz-institut fur sozialwissenschaften
838
bmj publishing group
747
sage publications inc.
587
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Language
english
297,446
unknown
23,860
undetermined
11,688
german
6,542
french
5,396
spanish; castilian
2,339
more ...
portuguese
1,342
chinese
961
russian
956
japanese
937
dutch; flemish
672
italian
634
czech
538
arabic
348
turkish
258
croatian
253
polish
238
swedish
193
spanish
183
finnish
159
ukrainian
158
danish
143
norwegian
110
hungarian
109
slovenian
93
indonesian
82
korean
72
romanian; moldavian; moldovan
59
serbian
49
lithuanian
48
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Geography
Content Provider
OpenAIRE
104,596
MEDLINE
97,255
BASE
63,206
APA PsycInfo
22,627
ERIC
16,976
OAIster
13,779
more ...
Science Citation Index Expanded
9,081
Complementary Index
5,152
SSOAR – Social Science Open Access Repository
4,985
Europeana
4,146
EconLit
3,500
Business Source Premier
3,302
JSTOR Journals
3,290
GBV Online Contents
3,053
Social Sciences Citation Index
3,027
Academic Search Index
2,594
ScienceDirect
1,820
Directory of Open Access Journals
1,695
PASCAL Archive
1,191
Springer Nature Journals
918
HAL
827
EU Bookshop
762
APA PsycArticles
736
Gale eBooks
674
Westlaw UK
655
Supplemental Index
583
wiso
582
Education Research Complete
566
IMF eLibrary
536
eScholarship
516
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