Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Schematic diagram of the folic acid family of enzymatic cofactors

(Source: Diagram by Boghog courtesy of Wikimedia Commons. Creative Commons Attribution-Share Alike 4.0 International license.)