“Evaluation of the safety and efficacy of T-AYU-HM Premium and Onion steam inhalation in mild to moderate Covid-19 Patients: Clinical trial study”, Int. J. Pharm. Sci. Drug Res., vol. 14, no. 2, pp. 233–237, Mar. 2022, doi: 10.25004/IJPSDR.2022.140212.