About: http://webisa.webdatacommons.org/193380851

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	This condition mainly occurs in the first trimester; it is rare during the late second trimester.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov