1. The extension of rheumatology services with physician assistants and nurse practitioners;Hooker;Best Pract Res Clin Rheumatol,2008
2. Changing practice models in otolaryngology-head and neck surgery: the role of collaborative practice;Reger;Otolaryngol Head Neck Surg,2009
3. American Academy of Physician Assistants http://www.aapa.org/images/stories/Specialty_Practice/Otorhinolaryngology08C.pdf 2010
4. America Academy of Nurse Practitioners http://www.aanp.org/NR/rdonlyres/97CD0283-59DF-4964-819B-61E58864B4F8/0/08AnnualReport.pdf 2010
5. Association of American Medical Colleges https://services.aamc.org/publications/showfile.cfm?file= version67.pdf&prd_id=160&prv_id=190&pdf_id=67 2010