Nasopharyngeal and oropharyngeal rinses with neutral electrolyzed water prevents COVID‑19 in front‑line health professionals: A randomized, open‑label, controlled trial in a general hospital in Mexico City
Gutiérrez‑García et al., Biomedical Reports, doi:10.3892/br.2021.1494
https://c19early.org/gutierrezgarcia.html