Naresh Kumar Suman, Md. Haroon Rashid, and Sude Kumar Singh. “An Observational Study on Serum Electrolytes Among Patients With Acute Exacerbations of Chronic Bronchial Asthma at a Tertiary Care Hospital of Bihar”. International Journal of Health and Clinical Research, vol. 5, no. 3, Jan. 2022, pp. 755-7, https://www.ijhcr.com/index.php/ijhcr/article/view/4909.