1. Physician assistants in the United States;Mittman;BMJ,2002
2. Growth and change in the physician assistant workforce in the United States, 1967-2000;Larson;J Allied Health,2007
3. Choice of specialties of physician assistants in the United States;Morgan;Health Aff,2010
4. National Commission on Certification of Physician Assistants. 2017 statistical profile of certified physician assistants: An annual report of the National Commission on Certification of Physician Assistants. 2018. Available at: http://prodcmsstoragesa.blob.core.windows.net/uploads/files/2017StatisticalProfileofCertifiedPhysicianAssistants%206.27.pdf. Accessed August 20, 2018.
5. Caring for the critically ill patient. Current and projected workforce requirements for care of the critically ill and patients with pulmonary disease: can we meet the requirements of an aging population?;Angus;JAMA,2000