About: http://webisa.webdatacommons.org/30644647

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Down Syndrome is the most common genetic cause of mental retardation, with a prevalence of 1:800-1:1,000 live births.
http://www.w3.org/ns/prov#wasQuotedFrom	kennedykrieger.org