About: http://webisa.webdatacommons.org/81455375

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	Blood samples are collected at baseline, at randomization, and then semi-annually for laboratory and other testing.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov