Tiwari, Sukriti, Jyoti Yadav, and Sebi Das. “Effectiveness of Balloon Therapy Versus Incentive Spirometry in Promotion of Respiratory Function in Children With Lower Respiratory Tract Diseases in Selected Hospitals Lucknow, Uttar Pradesh”. International Journal of Contemporary Pediatrics 11, no. 6 (May 27, 2024): 686–693. Accessed March 26, 2026. https://www.ijpediatrics.com/index.php/ijcp/article/view/5999.