Pottirayil, A., S., S. A., Kannoth, S., Prasad, P., Jaikar, S. K. B. and Reddy, L. M. (2021) “A prospective, open label clinical study to evaluate the safety, efficacy and tolerability of azadvir herbal steam inhaler in asymptomatic, mildly symptomatic COVID-19 patients and health care workers posted to covid wards”, International Journal of Basic & Clinical Pharmacology, 10(4), pp. 373–380. doi: 10.18203/2319-2003.ijbcp20211018.