"Perfume" 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
A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell, especially a fluid containing fragrant natural oils extracted from flowers, woods, etc., or similar synthetic oils. (Random House Unabridged Dictionary, 2d ed)

This graph shows the total number of publications written about "Perfume" by people in this website by year, and whether "Perfume" was a major or minor topic of these publications.
Bar chart showing 529 publications over 28 distinct years, with a maximum of 142 publications in 2018
To see the data from this visualization as text, click here.