Recent progress in medical ultrasonics.
D000818:Animals; D001698:Biomedical Engineering; D001783:Blood Flow Velocity; D003626:Data Display; D005260:Female; D005318:Fetal Heart; D006696:Holography; D006801:Humans; D011247:Pregnancy; D014116:Toxicology; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography