Filtering by: Contributor Ballenger, Martha Remove constraint Contributor: Ballenger, Martha Location Duke Medical Center Archives Remove constraint Location: Duke Medical Center Archives Collection PA Implementation Era (1966-1972) Remove constraint Collection: PA Implementation Era (1966-1972) Subject Delivery of Health Care -- manpower Remove constraint Subject: Delivery of Health Care -- manpower Subject Hershey, Nathan Remove constraint Subject: Hershey, Nathan Subject Professional Competence Remove constraint Subject: Professional Competence