pubmed:abstractText |
To estimate the cumulative probability of occurrence of first use of alcohol and tobacco, and the risk of transition to illegal drugs (marijuana, cocaine, and heroine, among others), in adolescents and young adults, in Morelos State, Mexico.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
English Abstract,
Research Support, Non-U.S. Gov't
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