About: http://webisa.webdatacommons.org/418332022

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	Crossover should be avoided whenever possible, but particularly in cases when crossover is allowed because of an interim analysis based on an intermediate endpoint that may not be a surrogate for overall survival.
http://www.w3.org/ns/prov#wasQuotedFrom	lww.com