Text this: Textbook of veterinary diagnostic radiology / [edited by] Donald E. Thrall, DVM, PhD, Emeritus Professor, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, Radiology and Quality Control IDEXX Telemedicine Consultants, Clackamas, Oregon ; [contributors, Donald E. Thrall, William R. Widmer [and forty others]].