Reference
Strulovici-Barel, Y., Shaykhiev, R., Salit, J., Deeb, R. S., Krause, A., Kaner, R. J., … & Shanmugam, V. (2016). Pulmonary abnormalities in young, light-use waterpipe (hookah) smokers. American journal of respiratory and critical care medicine, 194(5), 587-595.
Link to Reference