Susan Boyd, Joy L Johnson, Barbara Moffat
Harm Reduct J. 2008; 5: 34. Published online 2008 November 17. doi: 10.1186/1477-7517-5-34
- PMCID:
- PMC2613138
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Susan Boyd, Joy L Johnson, Barbara Moffat Harm Reduct J. 2008; 5: 34. Published online 2008 November 17. doi: 10.1186/1477-7517-5-34
Luciana A Ribeiro , Zila M Sanchez, Solange A Nappo BMC Public Health. 2010; 10: 671. Published online 2010 November 4. doi: 10.1186/1471-2458-10-671
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