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Subject
- Social aspects9
- History6
- Social conditions6
- Politics and government5
- Authors, American4
- Economic aspects4
- Health aspects4
- Law and legislation4
- Political aspects4
- Research4
- COVID-19 Pandemic, 2020-3
- History and criticism3
- Medical care3
- Prevention3
- Psychological aspects3
- Arab-Israeli conflict2
- Books and reading2
- Climatic changes2
- Diagnosis2
- Food habits2