Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
Since the early eighties, ultrasound has become increasingly popular in all aspects of veterinary medicine. As more practitioners become experienced in the application of ultrasound and as the cost of units becomes increasingly affordable, its use in the average large or small animal practice may become more common. As the demand for more advanced medicine in the veterinary field increases, it becomes especially important for the veterinary student as well as the practitioner, to become proficient in the various diagnostic applications of ultrasound.
Adams, C. D. and Evans, L. E.
"Ultrasound as a Diagnostic Tool in Equine and Small Animal Medicine,"
Iowa State University Veterinarian: Vol. 51
, Article 13.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol51/iss1/13