Safety and efficacy of Siddha management as adjuvant care for COVID-19 patients admitted in a tertiary care hospital - An open-label, proof-of-concept Randomized Controlled Trial oleh Gnanaraj Johnson Christian, Ramasamy Meenakumari, Ramalingam Shanthimalar, Ganesan Sankar, Vadugam Muthusamy Ravichandran, Selladurai Elansekaran, Murugan Ramamurthy, Venkatachalam Srinivasan, Elumalai Rajalakshmi, Kangusamy Boopathi, Kesavan Vennila, Mohanasundaram Nijavizhi, Ambalavanan Shakthi Paargavi, Selvam Aruldevi, Sekaran Priyanka, Govindasamy Gajalakshmi