共 9 条
[2]
DUSSIK K T, 1958, Am J Phys Med, V37, P160
[4]
FORNAGE BD, 1987, J ULTRAS MED, V6, P19
[6]
HEUTER TF, 1948, NATURWISSENSCHAFTEN, V35, P285
[9]
MIDDLETON WD, 1984, J ULTRAS MED, V3, P549