| Literature DB >> 6638854 |
M Shah, P Crompton, M D Vickers.
Abstract
Photographs of smoke particles expelled by coughing showed that the filtration type of face mask effectively prevents them from spreading far from the wearer.Mesh:
Substances:
Year: 1983 PMID: 6638854 PMCID: PMC2494432
Source DB: PubMed Journal: Ann R Coll Surg Engl ISSN: 0035-8843 Impact factor: 1.891