Premodifier: serum
Head noun: sample

Same concepts
http://dbpedia.org/resource/Blood_test

Broader concepts

labelprovenanceconfidence
body fluidisap:1170960100.429199
sampleisap:3972766450.304650

Narrower concepts

labelprovenanceconfidence
negative controlisap:2734830150.416830
sampleisap:3972766510.385666
controlisap:2734830040.280180