PMC:7784787 / 187-296
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{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7784787","sourcedb":"PMC","sourceid":"7784787","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7784787","text":"resent a novel method of measuring mask performance which can simultaneously assess both fabric penetration a","tracks":[]}