Submitted by hoffmanh on Fri, 02/05/2021 - 11:26 Return to: Negative Pressure Face Shield (NPFS) for Transnasal Laryngoscopy to Mitigate Dispersion of Bioaerosol in COVID Era Negative Pressure Face Shield (NPFS) for Transnasal Laryngoscopy KTP Laser Treatment of Hemorrhagic Polyp in COVID Era