They are distinguished by unique dcor or are very old or they were removed from manufacturing for some reasons and consequently became rare
In an extension of a previous analysis [298], Piacentini and colleagues applied a temperature modification to the carcinogenicity of UV radiation (effective carcinogenicity) to estimate the incidence of KC in current and next centuries as a result of rising ambient temperature under different climate change scenarios (RCP2.6, RCP4.5, RCP6.0, RCP 8.5) [299]
In practice, that means proving that adult smokers who use them are likely to quit or reduce their smoking, while teens are unlikely to get hooked on them
Van der Bol JM, Mathijssen RHJ, Loos WJ, Friberg LE, van Schaik RH, de Jonge MJ, Planting AS, Verweij J, Sparreboom A, de Jong FA (2007) Cigarette smoking and irinotecan treatment: pharmacokinetic interaction and effects on neutropenia
and vapes in Arizona laws ensures you stay within legal guidelines.
Monroe and Simons, 1991