About: http://webisa.webdatacommons.org/402330578

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	An age is a measurement of time where as stage of development is an assessment of the level physical development of the embryo.
http://www.w3.org/ns/prov#wasQuotedFrom	medicalmuseum.mil