title: A histological method for measuring the influence of ultrasonic energy on living tissue under experimental conditions.
mesh_terms: D000818:Animals; D001699:Biometry; D006652:Histological Techniques; D008407:Mast Cells / Q000166:cytology*; D008433:Mathematics; D008643:Mesentery / Q000166:cytology* / Q000293:injuries; D008722:Methods; D051381:Rats; D014464:Ultrasonic Therapy; D014465:Ultrasonics / Q000009:adverse effects* / Q000295:instrumentation