"Correspondence as Topic" 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.
Below are MeSH descriptors whose meaning is more general than "Correspondence as Topic".
Below are MeSH descriptors whose meaning is related to "Correspondence as Topic".
Below are MeSH descriptors whose meaning is more specific than "Correspondence as Topic".