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Helium

"Helium" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics. (Dorland, 27th ed)


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This graph shows the total number of publications written about "Helium" by people in this website by year, and whether "Helium" was a major or minor topic of these publications.
Bar chart showing 2 publications over 2 distinct years, with a maximum of 1 publications in 2005 and 2013
To see the data from this visualization as text, click here.
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