Filtering by: Contributor Snell, Roy W. Remove constraint Contributor: Snell, Roy W. Collection PA Evaluation and Standardization Era (1973-1980) Remove constraint Collection: PA Evaluation and Standardization Era (1973-1980) Subject American Academy of Physicians' Associates Remove constraint Subject: American Academy of Physicians' Associates Subject American College of Physicians Assistants Remove constraint Subject: American College of Physicians Assistants Subject Snell, Roy W. Remove constraint Subject: Snell, Roy W. Year 1973 Remove constraint Year: 1973