Abstract
References
1.
Caffey
J
. (1961 ) Pediatric X-ray Diagnosis . 4th ed . Chicago; p 413 .
2.
Harper
R A K
Guyer
P B
. (1965 ) Clin. Radiol . 16 , 97 .
3.
Kreel
L
. (1965 ) Proc. XI int. Congr. Radiol. p 555 .
4.
Kreel
L
. (1967 ) Brit. med. J . i , 406 .
5.
Kreel
L
Blendis
L M
Piercy
J E
. (1964 ) Clin. Radiol . 15 , 219 .
6.
Kreel
L
James
V
. (1965 ) Radiography
31 , 133 .