_:vb50950333 "A syndrome that is characterized by delayed development, intellectual disability, severe speech impairment, and problems with movement and balance."^^ . _:vb50950333 . _:vb50950333 . _:vb50950333 "url:https://ghr.nlm.nih.gov/condition/angelman-syndrome#genes"^^ . _:vb50950333 . _:vb50950333 "url:https://en.wikipedia.org/wiki/Angelman_syndrome"^^ . _:vb50950333 . _:vb50950333 . _:vb50950333 .