Abstract

References
1.
Deeley
T J
. (1967 ) British Journal of Radiology
40 , 801 .
2.
Shanks
W
. (1959 ) In: Cancer. Ed.
Raven
R W
. Butterworths , London ; 5 , 316 .
3.
Sicher
K
. (1958 ) Practitioner
180 , 695 .
4.
Ardran
G M
Crooks
H E
. (1974 ) Radiography
40 .
5.
Gawler
J
DuBoulay
G H
Bull
J W D
Marshall
J
. (1974 ) Lancet
ii , 419 –423 .
