title: A note on the Duquenois-Levine test for marijuana.
mesh_terms: D002188:Cannabis / Q000032:analysis*; D003069:Coffee; D005189:False Positive Reactions; D007202:Indicators and Reagents; D019684:Magnoliopsida; D008722:Methods
chemical_list: D003069:Coffee; D007202:Indicators and Reagents