This is the third edition of the foremost medical reference on hereditary hearing loss. Chapters on epidemiology, embryology, non-syndromic hearing loss, and syndromic forms of hearing loss have all been updated with particular attention to the vast amount of new information on molecular mechanisms, and chapters on clinical and molecular diagnosis and on genetic susceptibility to ototoxic factors have been added. As in previous editions, the syndromes are grouped by system (visual, metabolic, cardiologic, neurologic, musculoskeletal, endocrine, etc.), with each chapter written by a recognized expert in the field. Written for practicing clinicians, this volume is an excellent reference for physicians, audiologists, and other professionals working with individuals with hearing loss and their families, and can also serve as a text for clinical training programs and for researchers in the hearing sciences.About the Author: Helga V. Toriello received her PhD in genetics from Michigan State University. She is the Clinical Genetics Director of Spectrum Health and a Professor in the Department of Pediatrics and Human Development at Michigan State University. Shelley D. Smith obtained her Ph.D. in Medical Genetics at Indiana University and is certified as a Ph.D. Medical Geneticist by the American Board of Medical Genetics. She is currently Professor and Chair of Developmental Neuroscience and Professor of Pediatrics at the University of Nebraska Medical Center. She has been active clinically and in research in the field of hereditary hearing loss for over 20 years.