共 15 条
[11]
Melki G, 1973, J Clin Ultrasound, V1, P306, DOI 10.1002/jcu.1870010407
[12]
Rasmussen S N, 1973, J Clin Ultrasound, V1, P220
[13]
SCHEIBLE W, 1976, 1ST M WORLD FED ULTR