Thema
covid-19
140
Medicine
119
R
119
Environmental sciences
55
H
55
Social Sciences
55
Medicine (General)
49
pandemic
49
Education (General)
47
COVID-19
40
K
29
Law
29
Public aspects of medicine
28
Law in general. Comparative and uniform law. Jurisprudence
22
sars-cov-2
19
Social sciences (General)
18
coronavirus
18
G
15
Geography. Anthropology. Recreation
15
Business
12
africa
11
J
10
Political science
10
Special aspects of education
10
Education
9
nigeria
9
Covid-19
8
Infectious and parasitic diseases
8
L
8
Recreation. Leisure
8
Dramatic representation. The theater
7
Internal medicine
7
International relations
7
Political science (General)
7
covid
7
covid-19 pandemic
7
pandemia
7
surveillance
7
Fine Arts
6
N
6
canada
6
KJ-KKZ
5
Law of Europe
5
Therapeutics. Pharmacology
5
atividades de lazer
5
covid-19 and the eu
5
health
5
Architecture
4
Economic growth, development, planning
4
Ethics
4
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