Source:http://linkedlifedata.com/resource/umls/id/C0681850
NCI: An individual who is observed, analyzed, examined, investigated, experimented upon, or/and treated in the course of a particular study.,NCI: A physical entity which is the primary unit of operational and/or administrative interest in a study. EXAMPLE(S): A person who is registered in a study as a recipient of an investigational product or as a control. Individuals who are being screened for studies. Individuals participating in observational or other studies. A pacemaker, a fuse that can be used in medical devices, a cow, a farm, a pen of pigs, or a tissue sample from a tissue bank. NOTE(S): StudySubjects within a study are all of the same type. An entity registered in a study is not part of another entity registered in the same study.,NCI: A matter or an individual that is observed, analyzed, examined, investigated, experimented upon, or/and treated in the course of a particular study.