For FDA, the definition of "tobacco products" comprises tobacco products immediately covered under the TCA (cigarettes, cigarette tobacco, roll-your-own tobacco, smokeless tobacco) as well as newly deemed tobacco products (e.g., ENDS)
"Holding You, Holding Me" 6
They are also researching if electronic cigarettes can be called a medical product
We mustnt forget, for example, that events such as inflammatory processes cant be seen in vitro but are known to play a very important role in disease outcomes. The article Interaction between cigarette smoke and human papillomavirus 16 E6/E7 oncoproteins to induce SOD2 expression and DNA damage in head and neck cancer is at: doi.org/10.3390/ijms24086907
smoking, other than water pipe tobacco, whether or not containing tobacco substitutes in any proportion ($104M) remains the largest type of tobacco (smoking tobacco, chewing tobacco, snuff) exported from the United States, comprising 62% of total exports