We put together this short piece to break it down clearly for operators, regulators, and partners who need practical answers, not headlines
They are made easy to carry by manufacturers
Do Your Research : If you want to set aside some money to buy a luxury item in a duty-free shop, plan and do some research before arriving at the airport to determine which brand shops and items are available
This strategy could lead to a projected increase in niche product sales by 30% in future, appealing to health-conscious consumers seeking unique experiences.
The PUBMED and SCOPUS databases were searched using combinations of the following terms: electronic nicotine delivery systems, ENDS, e-cigarette, electronic-cigarette, vaping, propylene glycol, glycerin, vanillin, ethyl maltol, ethyl butyrate, butyric acid ethyl ester, cinnamaldehyde, cinnamic aldehyde, PD-L1, CTLA-4, PD-1, LAG-3, TIM-3, TIGIT, BTLA, PD-L2, VISTA, SIRPA, LILRB4, SIGLEC7, SIGLEC15, SIGLEC9, SIGLEC10, CD112R, KIR, NKG2A, CD47, CLEVER-1, HLA-G, SLAMF7, SLAMF4, SLAMF3, CD24, and CD155
