COVID-19(12) Treatment(12) was used(11) significantly(9) Analysis(9) Concentration(8) Patient(8) target(7) lung tissue(7) reduce(7) Antiviral(7) in vitro(7) treat(6) addition(6) therapeutic(6) carried(6) administration(5) aerosol(5) vibrating mesh nebulizer(5) aerosol therapy(5) optical(5) fugitive emissions(5) indicated(5) Schlieren imaging(5) respiratory(5) SARS-CoV-2(5) therapy(5) cytotoxicity(5) stability(5) KEGG(4)