“Nephrolepis Exaltata - Hibiscus Rosa-Sinensis Combination Herbal Mask Decreases Levels of Reactive Oxygen Species in Nasal Wash”. Universa Medicina 39, no. 3 (November 16, 2020): 184–191. Accessed April 30, 2025. https://www.univmed.org/ejurnal/index.php/medicina/article/view/1004.