Fig. 4
From: Analysis of coumarin and angelica lactones in smokeless tobacco products

Individual value plot: coumarin concentrations (ng/g STP DWB) by STP style. Concentrations < LOD or LOQ are shown as 0
From: Analysis of coumarin and angelica lactones in smokeless tobacco products
Individual value plot: coumarin concentrations (ng/g STP DWB) by STP style. Concentrations < LOD or LOQ are shown as 0