Ahmed, A. ., Nasir, S. ., Ali, L. ., Shehbaz, L. ., Aman, M. Z., & Ali, Z. . (2016). To Determine the Outcome and Progression of Patients Presenting with Acute Severe Asthma at a Tertiary Care Hospital in Karachi, Pakistan. Annals of Punjab Medical College, 10(4), 257–260. https://doi.org/10.29054/apmc/2016.268