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The stepping-stone hypothesis--marijuana, heroin, and causality.
The stepping-stone hypothesis--marijuana, heroin, and causality.
1982
ODonnell Ja
Richard R. Clayton
Keywords:
Suicide prevention
Causality
Occupational safety and health
Human factors and ergonomics
Heroin
Injury prevention
Medical emergency
Engineering
Psychiatry
stepping stone
Psychology
poison control
Correction
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