Preferred Term:
observational studies
Definition:
A research method in which investigators watch attentively to gather data without manipulation.
Concept Schemes:
NALT Full
NALT Core
NALT Core
Broader Concept:
Narrower Concepts:
URI:
https://lod.nal.usda.gov/nalt/137077
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RDF/XMLCreated 2010-09-01, last modified 2020-07-16
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