Combined Nasal, Oropharyngeal Povidone Iodine Plus Glycyrrhizic Acid Sprays, Accelerate Clinical and Laboratory Recovery and Reduces Household Transmission of SARS-CoV-2: A Randomized Placebo-Controlled Clinical Trial
Elsersy et al., Frontiers in Medicine, doi:10.3389/fmed.2022.863917
https://c19early.org/elsersy.html