Ramanathan, R. and Mahalakshmi, B. 2019. Comparison of efficacy between levosalbutamol and levosalbutamol-ipratropum nebulization in mild to moderate childhood asthma. International Journal of Contemporary Pediatrics. 6, 5 (Aug. 2019), 1952–1956. DOI:https://doi.org/10.18203/2349-3291.ijcp20193597.