About: http://webisa.webdatacommons.org/75359074

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	The term tumor marker refers to any substance that can be detected in higher than normal amounts in the blood, urine or tissues of some patients with certain types of cancer.
http://www.w3.org/ns/prov#wasQuotedFrom	healthcommunities.com