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Subject
- Needle sharing[remove]3
- Public health2
- Drug abuse1
- Epidemiology1
- Fishers1
- Fishers--Health and hygiene1
- HIV (Viruses)1
- HIV (Viruses)--Transmission1
- HIV (Viruses)--Transmission--Prevention1
- HIV infections--Transmission1
- Intravenous drug abusers1
- Medical care--Cost effectiveness1
- Needle exchange programs1
- Sociology1
- Syringes1