No Harm Found When CRNAs Work Without Supervision By Physicians, Dulisse B. Cromwell J. (2010), Health Affairs, 29:1469-1475.

Cost Effectiveness Analysis of Anesthesia Providers, Hogan P, Seifert R, Moore C, Simonson B. (2010; updated 2016). 28,3:159-169.

Physician Anaesthetists Versus Non-Physician Providers of Anesthesia for Surgical Patients, Lewis SR, Nicholson A, Smith AF, Alderson P. (2014). 

Developed by the American Association of Nurse Anesthesiology, this a great website that contains a plethora of useful information and documents.

Negrusa, Brighita PhD; Hogan, Paul F. MS; Warner, John T. PhD; Schroeder, Caryl H. BA; Pang, Bo MS

Pine M, Holt KD, Lou YB, (2003), AANA Journal, 71:109-116.