Physics, facts, and artifacts of diagnostic ultrasound.
D000818:Animals; D005704:Gallbladder / Q000033:anatomy & histology; D007668:Kidney / Q000033:anatomy & histology; D008099:Liver / Q000033:anatomy & histology; D055585:Physical Phenomena; D010825:Physics; D014463:Ultrasonography / Q000662:veterinary*