stability. (f) The variation rate of impedance and CSCc after ultrasonic tests for 1 h in PBS. A high-intensity ultrasound test (500 W, 1 kHz) was performed in PBS for 1 h to fur- tcvatvfcashhuoptoapareeruruprpotriislrhlranaddtsooAtertgtixxiorueoeoiainahsadnmmndtsgsiyugihraiarllaada...