"Football" 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.
A competitive team sport played on a rectangular field. This is the American or Canadian version of the game and also includes the form known as rugby. It does not include non-North American football (= SOCCER).
This graph shows the total number of publications written about "Football" by people in this website by year, and whether "Football" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.