AHMED, A.; NASIR, S.; ALI, L.; SHEHBAZ, L.; AMAN, M. Z.; ALI, Z. 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, v. 10, n. 4, p. 257-260, 23 Sep. 2016.