severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome (Monarch Disease Ontology entry MONDO_0014034) is an autosomal dominant non-syndromic intellectual disability that has material basis in an autosomal dominant mutation of GATAD2B on chromosome 1q21.3. Also known as: GAND syndrome, MRD18, autosomal dominant intellectual disability 18, autosomal dominant mental retardation 18, intellectual disability, autosomal dominant type 18, mental retardation, autosomal dominant type 18.