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Flavoring Chemicals in E-Cigarettes: Diacetyl, 2,3-Pentanedione, and Acetoin in a Sample of 51 Products, Including Fruit-, Candy-, and Cocktail-Flavored E-Cigarettes
There are, to put it simply, "left" and "right" machines, and all the machines of one manufacturer are either this or that, and the "fifty week" production line was patched up by several manufacturers, so the counter packer was stolen, and everything was established only when the line was put into operation
Model validation and performance assessment We also used previously developed validation methods [2123] to select the best-performing model among a number of different plausible models