Cotta , Karyn I., Stephen C. Dyar, and Mohammad N. Uddin. 2023. “A Review on Different Animal and Human Studies to Evaluate the Safety of Inhalation of Propylene Glycol in E-Cigarettes”. Advanced Concepts in Pharmaceutical Research Vol. 3, November, 133-50. https://doi.org/10.9734/bpi/acpr/v3/2442G.