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Statistical association and causation: contributions of different types of evidence
Troyen Brennan, wrote in a new article in the Journal of the American Medical Assn
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There are more smells in the environment than there are receptors, and any given molecule may stimulate a combination of receptors, creating a unique representation in the brain
It quickly became apparent that research questions could be grouped into four broad (and sometimes overlapping) areas: impacts on the individual
