MeSH Fact Sheet
The MeSH Fact Sheet information is now being maintained at https://www.nlm.nih.gov/mesh/meshhome.html
Please update your link.
This transition page will be deleted at the end of calendar year 2018.
After this transition page has been deleted, this current link (https://www.nlm.nih.gov/pubs/factsheets/mesh.html) will take you an archived version of the content located at http://wayback.archive-it.org/org-350/https://www.nlm.nih.gov/pubs/factsheets/mesh.html