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3,4‐Methylenedioxymethamphetamine (MDMA) is a racemic drug of abuse and its R‐ and S‐enantiomers are known to differ in their dose‐response curve. The S‐enantiomer was shown to be eliminated at a higher rate than the R‐enantiomer most likely explained by stereoselective metabolism that was observed in various in vitro experiments. The aim of this work was the development and validation of methods...
Aims Many cities have banned indoor smoking in public places. Thus, an updated recommendation for a breath carbon monoxide (CO) cut‐off is needed that optimally determines smoking status. We evaluated and compared the performance of breath CO and semiquantitative cotinine immunoassay test strips (urine and saliva NicAlert®) alone and in combination.
Design Cross‐sectional study.
Setting Urban drug...
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