"Cardiology" 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.
MeSH information
The study of the heart, its physiology, and its functions.

This graph shows the total number of publications written about "Cardiology" by people in this website by year, and whether "Cardiology" was a major or minor topic of these publications.
Bar chart showing 4147 publications over 28 distinct years, with a maximum of 421 publications in 2015
To see the data from this visualization as text, click here.