Asmat Perveen, Imran Mahmood Khan, Maqbool Hussain, Jai Krishin, Sajid Hussain Sherazi, Naima Fazi Raja. (2020) Comparison of Combined Nebulization of SalbutamolIpratropium Bromide with Salbutamol Alone in Children with Mild and Moderate Acute Asthma, , Volume 24, Issue 3.