Filtering by: Contributor Rosen, Richard G. Remove constraint Contributor: Rosen, Richard G. Collection PA Implementation Era (1966-1972) Remove constraint Collection: PA Implementation Era (1966-1972) Subject American Academy of Physicians' Associates Remove constraint Subject: American Academy of Physicians' Associates Subject American Association of Physicians' Assistants Remove constraint Subject: American Association of Physicians' Assistants Year 1972 Remove constraint Year: 1972