Keller, Jon L.; Rosenquist, Thomas H.; Schwartz, Charles F. & Miller, Barbara J. [Letters from Medical Professionals to Anthony Principi - August 2005], letter, August 2005; (https://digital.library.unt.edu/ark:/67531/metadc23370/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .