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 Estes, E. Harvey (Edward Harvey), 1925- Remove constraint Subject: Estes, E. Harvey (Edward Harvey), 1925- Subject Hershey, Nathan Remove constraint Subject: Hershey, Nathan Year 1970 Remove constraint Year: 1970