About: http://webisa.webdatacommons.org/152521898

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	Suitable biological samples for measuring PAPP-A levels include, for example, blood (including whole blood, plasma, and serum), urine, saliva, oral washings, and tissue biopsies such as skin, bone, or blood vessel plaque.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com