title: The surgical mask has its first performance standard--a century after it was introduced.
authors: Nathan L
authors: NL
authors: Belkin
mesh_terms: D004867:Equipment Design; D049672:History, 19th Century; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D017053:Infection Control / Q000266:history* / Q000295:instrumentation; D008397:Masks / Q000266:history* / Q000592:standards; D012015:Reference Standards