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Subjects
- Nurses16
- Dental Equipment14
- Physicians14
- China11
- Health Education11
- Health Promotion9
- Mutation8
- African Americans7
- Enzymes7
- Tuberculosis, Pulmonary -- prevention & control6
- Pan American Health Organization5
- Schools, Medical5
- Chromosome Breakage4
- Hygiene4
- Patients4
- World Health Organization4
- Acupuncture3
- Advertising as Topic3
- Cell Culture Techniques3
- Child3