Source:http://linkedlifedata.com/resource/umls/id/C1521895
NCI: The principal investigator (PI) at a site who is responsible for all activities related to a specific network's research at that site. EXAMPLE(S): Dr. Habermann is the ECOG site PI at Mayo Clinic. Dr. Long is the site PI for the GOG network participation at Mayo. They are responsible for the overall management of the entire network's (ECOG, GOG) studies in which the Mayo Clinic participates.,NCI: An investigator who is responsible for defined aspects of a study, as specified in the study protocol.,NCI: An investigator who is responsible for all aspects of the conduct of a study.