"Undocumented Immigrants" 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.
Foreign nationals residing in a country without legal immigration status, or in violation of the immigration laws of that country.
This graph shows the total number of publications written about "Undocumented Immigrants" by people in this website by year, and whether "Undocumented Immigrants" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.