S, M., A. S, and N. Ad. “COMPARISON OF THE EFFECTS OF VARIOUS MODES OF SMOKING ON THE PULMONARY FUNCTIONS IN HEALTHY VOLUNTEERS”. Asian Journal of Pharmaceutical and Clinical Research, vol. 8, no. 3, May 2015, pp. 289-91, https://journals.innovareacademics.in/index.php/ajpcr/article/view/5672.