GROŠPIC, Antonín, Eva KOUDELKOVÁ, Petr NIEDERLE, and František KLIMEŠ. “Method of Checking the Function of Implanted Artificial Valve by Pulsed Doppler Echocardiography – in Vitro Study”. Archives of Acoustics 9, no. 1-2 (July 10, 2015): 223–232. Accessed June 15, 2025. https://acoustics.ippt.pan.pl/index.php/aa/article/view/3218.