Abstract
References
1.
Bass
A L
. (1966 ) Proc. roy. Soc. Med.
59 , 653
2.
Bass
A L
. (1967 ) Proc. roy. Soc. Med.
60 , 527
3.
Gordon
D
. (1964 ) Ultrasound . Edinburgh & London
4.
Helfet
A
. (1963 ) The Management of Internal Derangements of the Knee . Philadelphia
5.
Summer
W
Patrick
M K
. (1964 ) Ultrasonic Therapy . Amsterdam