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21
by Royo Isach, Jordi,
Published 1994
...Study, evaluation and innovative factors of a syringe exchange program for drug users in Barcelona...
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eBook
22
by Conde, Ana María.
Published 1996
Subjects: ...Programas educativos...
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eBook
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Subjects: ...Programas de ordenador....
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eBook
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by Vergara, M. J.
Published 2003
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Article
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by Yuste Hernanz, Carlos.
Published 1993
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Tesis eBook