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- Health education 33
- China 12
- Health and hygiene 6
- Health and hygiene-China 5
- Cough 4
- Sneezing 4
- Anatomy 3
- Flies as carriers of disease 3
- Infection—Prevention 3
- Mosquitoes as carriers of disease 3
- Nutrition—China 3
- Baths 2
- Children—Health and hygiene 2
- Cholera—China 2
- Dengue 2
- Health and hygiene—China 2
- Health and hygiene—India 2
- Health behavior 2
- Malaria—Prevention 2
- Medicine, preventive 2