Khan, A., Iqtadar, S., Mumtaz, S., Heinrich, M., Pascual-Figal, D., Livingstone, S. & Abaidullah, S. 2022, 'Oral Co-Supplementation of Curcumin, Quercetin, and Vitamin D3 as an Adjuvant Therapy for Mild to Moderate Symptoms of COVID-19-Results From a Pilot Open-Label, Randomized Controlled Trial', Frontiers in Pharmacology, 13, article no: 898062. https://doi.org/10.3389/fphar.2022.898062