electronic cigarettes; electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; oral vaporizers for smoking purposes; electronic cigarette refill cartridges sold empty; electronic cigarette refill cartridges sold filled with chemical flavorings in liquid form; liquid nicotine solutions for use in electronic cigarettes; articles for electronic cigarette users in the nature of components for electro...