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.

Spina bifida and anencephaly prevalence in the United States, 1991-2001

(Source: Mathews TJ, Honein MA, Erickson JD. Spina bifida and anencephaly prevalence: United States, 1991-2001. MMWR Recomm Rep 2002;51 [RR-13]:9-11. Public domain.)