M. C. Guy, Pokhrel, P., Herzog, T. A., Cassel, K. D., Sakuma, K. - L., Trinidad, D. R., Palafox, S., Halquist, M. S., Eissenberg, T., Bodnar-Deren, S., and Fagan, P.,
“How Much Nicotine is in Your Electronic Cigarette Flavored Liquid?”,
Tobacco Regulatory Science, vol. 5, no. 1, pp. 15 - 26, 2019.