Letter to Editor on 'A randomized, controlled, blinded, parallel-group, clinical trial to study the role of Ayurcov (AyurCoro3), a one-day regimen as an adjuvant therapy for COVID-19 disease management, at dedicated Covid Hospital (DCH) in India' - Bharat Krushna Khuntia; Aman Agarwal; Gautam Sharma (Complementary Therapies in Medicine, 2022)