Neuro-Ophthalmology & Neuro-Otology
May. 19, 2023
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.
Enzymatic conversion of cholecalciferol to calcidiol by cholecalciferol 25-hydroxylase, a step in the biosynthesis of the active form of vitamin D3. Source: Robert Allen (2010). (Courtesy of Wikimedia Commons. Public domain.)