Razzaq, A., Ahmed Siddiqui, F., & Amjad, I. (2016). Smoke and pollens are precipitating factors for asthma exacerbation: JRCRS-2016; 4(1): 25-29. Journal Riphah College of Rehabilitation Sciences, 4(1), 25–29. Retrieved from https://journals.riphah.edu.pk/index.php/jrcrs/article/view/361