About: http://webisa.webdatacommons.org/150098556

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	Glomerular filtration rate is difficult to measure, so the number you have is an estimate of your GFR. Getting an accurate measurement is difficult, costly, and time consuming.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com