"Religion" 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 set of beliefs concerning the nature, cause, and purpose of the universe, especially when considered as the creation of a superhuman agency. It usually involves devotional and ritual observances and often a moral code for the conduct of human affairs. (Random House Collegiate Dictionary, rev. ed.)
Below are MeSH descriptors whose meaning is more general than "Religion".
Below are MeSH descriptors whose meaning is more specific than "Religion".
This graph shows the total number of publications written about "Religion" by people in Harvard Catalyst Profiles by year, and whether "Religion" was a major or minor topic of these publication.