Dr. Chris Chang has co-authored two book chapters in a hardcover textbook entitled " Laryngeal Diseases: Symptoms, Diagnosis and Treatments ". The book chapters Dr. Chang has co-authored are NOW available for download via Open Access. Melissa Mainville, a voice therapist at Fauquier Hospital , also co-authored one of the book chapters (Chapter 1). CHAPTER 1: Psychogenic Voice Disorders by Grace W. Johnson, Carmen T. Gonzalez, Christopher Y. Chang , Sarah L. Maines, Melissa M. Mai…