Contains a definition of Smith-Lemli-Opitz syndrome, a developmental disorder. Includes the genes related to the disease, and further resources.

Clinical article covers pathophysiology, presentation, diagnostics, workup, treatment, and follow-up.

Contains a general description of SLO syndrome, the alternative names and related organizations. From the National Organization for Rare Disorders.

Official site for non-profit support and research organization gives background, forum, current studies and research.

Review article from the Journal of Medical Genetics features history, clinical overview, incidence, anomalies, and life expectancy.