Frequency dependence of threshold ultrasonic dosages for irreversible structural changes in mammalian brain.
D000818:Animals; D001921:Brain / Q000473:pathology; D001925:Brain Damage, Chronic / Q000209:etiology* / Q000473:pathology; D002415:Cats; D013997:Time Factors; D014465:Ultrasonics / Q000009:adverse effects*