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Concentration calibration: the odorant reaching the panelist must mimic physiologically relevant concentrations

Amor, H., Hammadeh, M

Such assurances currently do not exist for electronic cigarettes due to the absence of federal regulation of these products. The FDAs decision, announced Thursday, means the agency will have to approve any tobacco products not currently regulated that began being sold after February 2007 -- including most, if not all, e-cigarettes

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International University in San Diego