Canadian Opitz Family Network
A description of Opitz G/BBB Syndrome.
DHCR7 and Smith–Lemli–Opitz syndrome
Background paper Clin Invest Med • Vol 24, no 6, December 2001
Family Village
Opitz G Syndrome information and contact links.
National Library of Medicine: OS
Opitz syndrome, the synonyms, a summary and a list of major features.
NORD: Opitz Syndrome
A look at the alternate names, a general discussion and resources.
The Opitz G/BBB Family Network
Online support and information for families with Opitz G/BBB Syndrome. Provides families with easy-to-read information about the syndrome.
The Smith–Lemli–Opitz syndrome
Review Article
Zach's Opitz Syndrome Site
Offers information, a family's experience with this syndrome and links to the Opitz Family Network.