Abstract

References
1.
Cassady
J R
Berdon
W E
Baker
D H
(1967 ) Radiology
89 , 1065
2.
Chung
S M K
Ralston
E L
(1969 ) Journal of Bone and Joint Surgery
51A , 33
3.
Currarino
G
Erlandson
M E
(1964 ) Radiology
83 , 656
4.
Herrick
J B
(1910 ) Archives of Internal Medicine
6 , 517
5.
Raven
J L
Tooze
J A
(1973 ) British Medical Journal
iv , 486
6.Reynolds (1966 ) American Journal of Roentgenology
97 , 693
7.
Stuart
J
Schwartz
F C M
Little
A J
Raine
D N
(1973 ) British Medical Journal
iv , 284
8.
Watson
R J
Burko
H
Magas
H
Robinson
M
(1963 ) Pediatrics
31 , 975
9.
Wigh
R
Thompson
H J
(1950 ) Radiology
55 , 553
