Ingenuity during the COVID-19 pandemic: a controlled experiment for respirator mask efficacy testing
Michael Hausman, Danil Rybalko, Philip Nasser, Damien Laudier, Daniel Charen, Emily Ferreri, James Iatridis, Leesa Galatz
BMJ Innovations Dec 2020, bmjinnov-2020-000514; DOI: 10.1136/bmjinnov-2020-000514