| http://www.w3.org/ns/prov#value | - vidence that marijuana serves as a stepping stone on the basis of its particular physiological effect,??? they write. ???One might argue that marijuana is generally used before other illicit mood-altering drugs, in part, because its effects are milder; in that case, marijuana is a stepping stone only in the same sense as taking a small dose of a particular drug and then increasing that dose over t
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