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A comparison of the validity of gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry analysis of urine samples II: Amphetamine, methamphetamine, (+/-)-3,4-methylenedioxyamphetamine, (+/-)-3,4-methylenedioxymethamphetamin
October 01, 2010
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National Laboratory Certification Program (NLCP)
March 29, 2016