John Raja, Nikil Niva, Ashttalakshmi Anjapuli, Suganya Poongavanam, Dineshkumar Sivakumar, Sasirekha Ranganathan, and Anbu Natarajan. “Efficacy of Siddha Medicine in the Treatment of COVID- 19 Patients - A Pilot Study”. International Journal of Ayurvedic Medicine 12, no. 3 (September 29, 2021): 610–617. Accessed March 28, 2024. https://www.ijam.co.in/index.php/ijam/article/view/2030.