Filtering by: Contributor Ballenger, Martha Remove constraint Contributor: Ballenger, Martha Contributor Leone, Lucile P. Remove constraint Contributor: Leone, Lucile P. 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 National Academy of Sciences (U.S.) Remove constraint Subject: National Academy of Sciences (U.S.) Subject Professional Competence Remove constraint Subject: Professional Competence Subject Stead, Eugene A. Remove constraint Subject: Stead, Eugene A.