共 4 条
[1]
COLEMAN AJ, 1986, Patent No. 863062238
[2]
COLEMAN AJ, 1986, UNPUB CHARACTERISATI
[3]
DUCK FA, 1986, ULTRASOUND MED BIOL, V12, P10
[4]
WIKHAM JEA, 1985, BR MED J, V290, P1188