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The observations and hypotheses that arise from epidemiology can be tested using
Opium
A highly addictive substance made from the sap of the opium poppy seed.
Ethyl Alcohol
A colorless, volatile liquid that is the intoxicating agent in liquors and is also used as a solvent and in fuel.
Fetal Alcohol Syndrome
A condition in a child that results from alcohol exposure during the mother's pregnancy, causing growth, mental, and physical problems.
Developing Embryo
The early stage of human development in the womb, from fertilization through to the fetal stage.
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