Masks

Devices that cover the nose and mouth to maintain aseptic conditions or to administer inhaled anesthetics or other gases. (UMDNS, 1999)

Symptoms:

WHO - World Health Organization PubMed - A service of the National Library of Medicine and National Institutes of Health MEDLINE - Literature from the National Library of Medicine MeSH - Medical Subject Headings DeCS - Health Sciences Descriptors

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