Baloch, R., and M. Pervaiz. “Secondhand Water-Pipe Smoking and Its Association With Systemic Inflammation Among Cafés Employees in Karachi, Pakistan”. National Journal of Health Sciences, vol. 4, no. 2, Dec. 2020, pp. 55-66, https://ojs.njhsciences.com/index.php/njhs/article/view/49.