About: case control study

Premodifier: case control
Head noun: study

Same concepts
http://dbpedia.org/resource/Case-control_study

Broader concepts

label	provenance	confidence
observational study	isap:371315450	0.785816
epidemiological study	isap:371315629	0.715471
study design	isap:154579413	0.400785

Narrower concepts

label	provenance	confidence
study design	isap:116796149	0.642292
study	isap:371315104	0.428843
cancer	isap:120224290	0.233508